Black Panther was the highest-grossing movie domestically for 2018, even beating Infinity War. He absolutely left his mark and will be remembered. Just wish it wasn’t so soon, he had so much more to give. It’s kind of crazy that he managed to be so jacked in so many superhero movies while having cancer, it must have been crazy difficult to maintain that physique. To be fair, the movie started filming a full year before it’s release date, so it’s quite possible that he bulked up prior to shooting, and lost the weight over time, after he no longer needed to keep up the physique.
Saw someone in the marvel thread make a good point how the studio possibly did know and it would explain the delay for the Black Panther sequel. Who knows though. I can’t imagine there’s any way in which the studio wouldn’t have known. He needed to work out scheduling for everything he did medically with his professional work, and once you’re a Marvel character people want you everywhere. And for them to keep quiet about it (Marvel/Disney) in this age of social media. No one slipping up or selling a juicy story, really amazing.