If we do New Warriors I'd prefer not to go with Civil War looks. It was their low point as a team and felt like a real disservice. I'd prefer their early looks. Nova's second look was more or less a back to basics we already have so you could get away with Night Thrasher, Namorita, Marvel Boy/Justice, and Speedball. Fifth could be Firestar - although her existing 'mate isn't far off. If not her, then Silhouette or Rage. Animal companion could be Niels.
For Thunderbolts I'd again want original looks. Citizen V, Mach-1, Techno, Meteorite, Atlas. Maybe swap Jolt in for Atlas if we can get a vinimate of him enlarged. No clear animal/small choice - maybe that flying V hoverboard they all stood on in the first issue? Hard to believe we got the whole Osborn team, but not the originals.