So we now know the majority of the squad.

Since so much of the leak has turned out to be true, it's safe to assume that Cora and Drack are part of the squad alongside Liam and Peebee. Knowing what we do now, I think we can make some educated guesses about the rest of them.

It's probably safe to assume that Liam and Cora are the two starter squadmates, and the leak mentioned that Cora is a support party member, which means that Liam is likely more combat focused.

Now that we know how the class system works, it is also likely that they are returning to the system of each squadmate representing one of the player classes.

Since Cora apparently focuses on defensive biotics, she is most likely a Sentinel, maybe an Adept. Vanguard is unlikely since it's an offensive focused class. No indications on her backstory prior to joining the A.I. initiative, but I think there's a good chance that both she and Liam know the Ryder siblings from before.

Based on what little we've seen of Liam, he's probably either a Soldier or a Vanguard. Both would fit his history as a police officer, and it would match Cora's support based specialization.

Peebee is most likely an Adept. Given she is a scientist, Sentinel is also a possibility. I am almost certain that between the two options, Peebee will be whichever one Cora is not.

Drack, being a krogan, is probably either a Solder or a Vanguard. Like Cora and Peebee, Drack will likely be whichever of those two Liam is not.

Since there is apparently one ark for each council race, it is also very likely that two of the remaining sqaudmates are a turian and a salarian. Most likely the turian will be an Infiltrator and the Salarian will be an Engineer, but it is possible for it to be the other way around.

This leaves the mysterious seventh squadmate. This one is completely speculative, but there is a decent chance that they will be a native to the Andromeda galaxy, maybe even a khet since the developers want us to sympathize with them. This also seems like the most likely to represent the new Explorer class. Granted, any of these seven possibilities could end up representing the Explorer class.

Bioware likely doesn't want the squad skewed heavily in favor of one gender, so it is very likely that one of the three unknowns is female. My money is on the turian.

Based on past patterns, it is very likely that Liam, Cora, and Peebee are love interests. Since Peebee is an asari, it is also extremely likely that she will be the female bisexual love interest. It also caught my attention that Liam is being discussed alongside Peebee, rather than Cora. This suggests to me that he is the male bisexual love interest. Of course, this is supposition on my part and likely nothing more than wishful thinking. Cora will likely be the straight female love interest, but it is not totally out of the realm of possibility that she is a lesbian. Assuming the 2/2/2 system that Inquisition going to use before the delay, it is hard to say if one of the three unknown squadmates (most likely not the salarian) are love interests, or if the other three love interests are restricted entirely to prominent NPCs. Note that by love interest, I am leaving out characters that can only be one night stands, of which there may be several.