That's what I've been saying about Namora and Agents of Wakanda. There's just no way she could join that group after what Wakanda did to Atlantis under Hickman's run. Of course, we had Robinson writing that nonsense with Hyperion and Namor and Atlantis at the end of SS, so I wouldn't put it past editorial to try and feed us that idiocy.
Namor would be better off never having anything at all to do with T'challa and Wakanda. That is never going to benefit Namor in the least. Namor would always be abused with zero benefit to the character and his mythos. History has proven this. None of their past interactions happened in Namor's own book or story, and I guarantee you, if it did in the future, no one at Marvel Editorial is going to portray Atlantis or Namor at their proper levels. They'll always get trashed, their advanced tech will be denigrated, their magic ignored, and Namor will be written as an idiot, falling for the same old tired 'tactic' of dehydration. NO THANKS.
Furthermore, even before AvX, Namor and T'challa have never gotten along, except for some truly dreadful OOC stuff written by Hudlin, in a Black Panther book, of course.