If we think that Grogu will meet Ben Solo at Luke’s school, will we see Han? If so, will they have to do a creepy Han video game character because Alden Ehrenreich would look weird next to Luke?
I’m guessing they’d use CGI - Alden works better as a younger version of Han, not as a Han replacement. But i don’t think they’ll do it at all. If they were to have a cameo of Han, I’d view it as pure fan service unnecessary to the plot and wouldn’t be happy. One major original trilogy protagonist is quite enough.