Has there been any signs of Quarians so far?

Is this a true spoiler? 

A Krogan pregnancy generated thousands of eggs. If Krogans got pregnant multiple times like any other species, a single couple could produce several thousand offspring. Point-one percent viability is one child per pregnancy, which is in line with the standards of the humans, turians, and asari.

It is the worst marketing because the question of quarian involvement has been asked by multiple you tube personalities that are known to the developers and have even been asked to play andromeda before release (because they are so well known), multiple fans have been asking about quarians all over the internet on redit and twitter, magazines have articles in which they question the involvement of the quarians. Even Mac Walters, the guy in charge of all departments of mass effect deveopment was asked in an interview, are there quarians in andromeda because they were one of the main races.
Yet basically what the fans want to know is unbeknownst to whoever is running the marketing campaign for ME:A and they let us know in the shitest way possible by having a one liner in a marketing video on the intiative without even showing a quarian. It is so subtle that people could be forgiven for missing it.
If I was the head of bioware, I would have fired the head of marketing for not even being aware of the fan base and attempt to answer a question more clearly that would easily increase hype of the game before release. Am I wrong here?
It was stated a long time ago that something like the turian ark went missing (which I'm guessing then is the same one the quarians are on) on something like twitter or somewhere on the internet, but this was a year ago. 
Keep in mind there are probably turians on the nexus as well so thats no guarantee that everyone survived just because you saw a few turians.

So you're telling me that I'm wrong because the fans would be angry at the endings and possibly choosing one as canon to continue the franchise  in the milky way. Is that not just an extension of the anger the fans had anyway about the original endings? I'm not saying the writers are blameless. They did write themselves into a corner, but the fan base overreacted so negatively that they had to change the setting.

Its not really playing devils advocate or making an assumption to say thats the reason they changed the setting. That was the reason they changed the setting. The developers have basically stated this a long time ago. 

The trilogy finished 5 years ago, does it really matter if they chose a canon ending now and learned from their mistakes for future games? I personally don't care too much about that myself because everyone played all three endings. We all need to move on. 
And if push came to shove, you could have had the next mass effect game so far into the future that eventually all three endings would merge. Mass effect are great at creating the illusion of choice in video games. For example, it didn't matter if you destroyed the collectors base or not in ME2. The IM was still using reaper tech in ME3. 

1. The reapers were destroyed but the relays were repaired. Life continues and maybe some geth that were offline (maybe the heretics) escapted the destruction of artificial life or (insert technobabble here), not all quarian ships choose to join the fleet in engaging the geth, the krogan still  had the genophage and they wouldnt be wiped out because of that. Thr genophage maintains a low population, it does not make the krogan go extinct. We don;t know anything about the hanar or drell (actually the drell were gonig to go exitnct no matter what) and some batarians didn't live in batarian space, such as the ones we see on the citadel in ME3. 

2. Shepard takes control of the reapers and they rebuild the mass relay network and the rest of the galaxy. But eventually the reapers are dismantled because they are no longer needed and the shepard AI went offline once galactic peace was reestablished. You can dress it up, I can't really go into it in a few lines on this post.
3. Artifical and organic life merge and they understand each other completely. If you put the story far enough into the future, this will happen anyway. That ending was so vague as to what the merging of artificial and organic life meant that we don't really know what that means to the ME galaxy. 

I mean don't expect me to go into massive details to address every single item of minutia in this post about how they could have continued the game after the ME3 endings. Its not impossible. 

If you go 1,000 or 2,000 years into the future anything can happen. Look whats happened in the last 2000 years of our own civilisation. Were roman philosophers writing about how one day man would walk on the moon and establish colonies on mars and fly faster then sound?

But the idea of starting the franchise in an entirely new galaxy was to escape the endings because of the fan reaction. And now thats what we got. A galaxy without quarians. A franchise possibly without quarians? If thats true, then they might as well be extinct because fans will not see them again.

It is the worst marketing because the question *snip*

No you're wrong because it's not "because fans were angry".  Fans being angry was simply a side effect of the real problem, which was the endings themselves.  The ME3 writers didn't think about the implications of what they wrote.  Fans were angry because every situation of the ME3 ending was "Everybody dies no matter what you do" until the revised ending dlc that put a bandaid on it but didn't really fix the core problem.  ME3 writers wanted everyone focus on the organics vs synthetics thing with the reapers issue, but there two problems with that

1) Quarian/Geth conflict already demonstrated that issue in a much better way.
2) Organic/Synthetic debate was totally irrelevant, the problem was the implications of each ending.  Regardless of ending, most of galactic civilization is stranded and left to starve.  The destroy ending is meaningless because whats to stop more synthetics being built?  The green ending leads to existential horror as people are forcibly Borgified by being roboticized, plus all the elitism that would lead to on its own with caste systems and extreme body augmentism.  So on and so forth.

THAT'S why they had to abandon Milky Way. They literally can't address how badly they screwed up the setting with the ME3 endings.