Okay, so the rumor is Namor (who we pretty much knew) and Dr. Doom will be introduced in BP 2. Shuri is going to take up the Panther mantle after her brother is killed in battle. Probably unused footage and CGI. But come on now, Letitia is like this:
scrawny as a mf. I know padding in the suit and CGI will help but honestly, I've never seen her show enough acting chops and she definitely doesn't have the body for the suit.
Now, Danai or Lupita do, so there's that. Don't think they'll resurrect Killmonger. The gorilla guy and the traitor guy are still in play though. If nothing else it opens up lots of storylines.
Yeah, pretty sure Shuri will be temporary BP until The Mouse figures out how to insert a new male lead. Most likely a good actor who's not that well known. Marvel is killer with their casting so it should be a choice that we all can get with.
Naturally, BP 2 won't have the impact of 1 but even with Chadwick did we really expect it to?