Wasp, Sunfire and Wonder Man will join the John Cassaday-illustrated title from February's issue #5.
That issue will also feature guest art from Olivier Coipel, who most recently contributed to Avengers vs X-Men.
Speaking at Marvel Comics' Next Big Thing conference call, Remender revealed that Wasp will be financing the team, which is based in her Avengers Mansion home.
"Beyond that, Wasp has a few interesting things she'll be doing as well to help the mutants' reputation... not all of that will go well," he said.
Wonder Man will continue to explore his pacifist role as the team's PR man, while Sunfire has "business" with Wolverine.
The initial cast for the flagship Marvel NOW! title comprised Scarlet Witch, Rogue, Havok, Captain America, Thor and Wolverine.
Uncanny Avengers #2 has been delayed and will arrive on November 28.