One thing they need to do if the series returns to the Milky Way

:srs:

Harbykins was a shit reaper that only got the job because the cooler reaper drew the short straw at the galactic horizon.

Anyways, Harby would just be a confused giant robo cuttlefish with no motivation to do anything because ReaperOS was uninstalled by Shepard. More than likely, we'd just find it drifting around in an asteroid belt bouncing off of things. After which, everyone would gather around to gawk at the failure, then blow it to bits. 

There's nothing impressive about penetrating plot armor - Shepard's a puny human. But then, Harbinger couldn't even fully pull that off in the end. Harbykins is a failure. When it told the Collector General that they failed, it was really talking to itself.

Listen to yourself; you're indoctrinated!

My biggest regret of no MW is not anything ME3 ending related.

Its that I have no sign so far of getting able to explore the various populated alien worlds with the power of more open level design.

I want to roam Palaven, the secret reaches of Thessia, future city worlds of the Traverse, and so on.

"We are Harbinger! "

The next war in the MW would be against Leviathan. They showed no remorse whatsoever over controlling sentient beings and I can't see them changing.
Problem is, the writers would have to be very careful or it would be too much like the OT. Keep the Leviathan off screen and only fight their pawns, probably not even have them as the main antagonist, that might work. You couldn't ignore them though, they've already shown how merciless, arrogant and powerful they are. They wouldn't slink off and live peacefully in some far corner of the MW.
Still, after ME:A it's probably best they leave it alone unless they bring their A team.

Nah... Harbinger was never that big a thing with me.

Harbinger is a good indication of how ME2 started to divert so much from the ethos of ME1.

No thanks. Andromeda so far in my playrhough sets up some fantastic sequels. SO much pontential in Andromeda galaxy.
If only they keep expanding it. Companions will gow fantastic given the chance.
Vetra , Peebee are killing it in andromeda.

I am not in disagreement with you. In my ideal world (which means it won't happen) bioware would keep making games set in both galaxies pretty much making it two sub franchises within the same franchise. Have Edmonton work on Milky Way games and have Montreal do the Andromeda games.

That's horrible, IMO.  The little guy doesn't deserve such a fate.  Hmm...now I have to go post something in Kaidan's thread.

That little bug of an animal annoyed me so much in my ME3 playthrough it deserves worse!
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Not possible without complete retcon of ME3 endings and canonizing that retcon ending.

While that would be a good thing, Bioware firmly believes terrible ME3 endings we got are good.