I would pick NICOLE the Holo-Lynx, if it just have to be just one of them for the IDW relaunch. But I would like if they bring Mina Mongoose back for the IDW relaunch, if Karl Bollers would allowed it, of course. Can you make a petition on Change.org on bringing Mina Mongoose for the IDW relaunch like you did on putting Sally Acorn and the other Freedom Fighters for the IDW relaunch?
Here are my thoughts on each SatAM character coming in:
Nicole: I honestly don't know...
Rotor: As much as I like him, and that he kinda resourceful and helpful, he's...out of place. What I mean is that Tails is the mechanic of the Sonic team, and Rotor has that too, but it'll be out of place since...well, like I said, Tails is the total definition of that role. If they give him a new skill set of occupation, maybe, but no, I don't see him coming in.
Antoine: Maybe...although I guess maybe as cameos or as a one off.
Bunnie: Now that's a character I like to see come back. She'd be cool, and a tough fighter! Yeah, keep her around and maybe have her as a guest character! However, would be very uncertain if they can have her in, so it's a maybe not. However, I can see someone basing a character on her on the them of rabbits and cyborgs.
And finally Sally: Yes, I voted yes on Sally...I can see her returning. In fact, she'd probably the only one that would return in the series. Maybe as cameos, or as a character that either the main one, or a minor one. However...given how maybe they'll probably, and I mean probably have Sonic and Amy in the comic, and they'll likely be either Sonamy moments or the usual Amy crushing on Sonic...I really don't think so. I think I'll play it safe that she'll appear as a cameo...or not be in the comic at all.