Just add Kasper and Shuri to the team and it fits well enough as AoW. Can't use Nakia because she is dead (unless Nunakia makes it back to 616) M'Baku could not be trusted, same to white wolf though this fits up his alley. The main thing is that everyone on the team has a unique skillset and Tchalla in theory, can trust that the info he is getting is solid and that none on the team have ulterior motives that will torpedo the team.

But as said before, I think for this book to go past 12 issues depends on how well the story is, and the art, as well as BP and wasp fandoms coming together to support the book. There might be just enough fans of the other characters to help boost numbers but those two are the main funders of the group. Which of both are shown doing cool stuff and being written in character, then this book can easily last