If Stan Lee's wish had been granted, and he had been afforded the opportunity actually to face off against Black Panther in a fist fight, then it would arguably be the most active that the Marvel icon has been in a Marvel movie in terms of directly affecting the protagonist. For the most part, his appearances have been small, blink-and-you-miss-it moments that often don't even cross over with the main hero -- with a notable exception in Thor: Ragnarok, in which Stan Lee's character gives Thor Odinson (Chris Hemsworth) his new haircut. A fight scene would definitely be new territory for Lee, but if something like that were to happen, I wouldn't be shocked if some fans were excited to see something wild like that go down.