Jexx21 wrote...
I'd say atleast 2 new Characters. so at the very least you would have James, Ashley/Kaiden, Liara, and another squadmate.
WARNING, MUCH OF THE SPECULATION BELOW RELIES ON MINOR POTENTIAL SPOILERS REGARDING LOCATIONS CONFIRMED FOR ME3 IN VARIOUS MAGAZINE ARTICLESI think this is likely. Personally, I see it breaking down like so:
GUARANTEED and PERMANENTLiara
Kaidan/Ashley
Vega
Possibly one more unannounced new character
PERMENANT (IF NOT DEAD)
Garrus
Tali
1 (maybe 2) other ME2 squadmember.
TEMPORARY (IF NOT DEAD)Mordin (on Sur'Kesh)
Samara (on Thessia)
Wrex and/or Grunt (on Tuchanka)
Legion and/or Kal'Reegar (on Rannoch)
That leaves us with Miranda, Jacob, Jack, Thane, Zaeed, and Kasumi. I think it's a safe bet to say that neither Zaeed or Kasumi will be permanent squad members if they're alive. I'm sure they'll at least get cameos, and may even be temporary squadmates for a mission, but I'm not holding my breath on that. That leaves Miranda, Jacob, Jack and Thane to fill 1-2 permanent positions. Jacob is unlikely (poor guy). I hope he gets an extremely badass temporary mission that converts all the haters. I know a lot of people are holding out hope for Thane... but I think it's unlikely he gets to be a permanent member. I hope they let him go out in a blaze of glory against the reapers, though. That leaves us with Miranda and/or Jack for a permanent return. If we only get one, I hope it's Jack, but we'll see.
This breakdown would allow for a minimum of 3 (maybe 4) permanent squadmembers and plenty of temporary options to change the pace once in a while. A Shepard who saved everyone in ME2 would have a team of 6-8, which seems plausible to me.
The list of temporaries is obviously a load of guesses, and a bit of wishlist on my part.

The Mordin and Wrex guesses seem the most likely at this point in time. I'd love to see Samara back on Thessia, meting out some Justicar justice to the Reapers. I'm hoping against all hope that we can bring along both Wrex and Grunt when we return to Tuchanka. I can't think a more perfect recipe for ultimate badassery. Legion seems like a logical temporary squadmember option when it comes time to tackle the Quarian/Geth situation, and it may be wishful thinking, but man it would be awesome to have Kal'Reegar as an option as well. I can't wait to see how that whole scenario all plays out.