Everybody wants to see Han do his thing again, that is until they see Harrison Ford didn't magically not age for the past 30+ years. Watch Kingdom of the Crystal Skull again if you don't recall this fact.
And Mark Hamill and Carrie Fisher? It's not like they were great actors back in their day. And to tell you the truth, it's really depressing to find out that the Empire was never really defeated and managed to completely rebuild and then some in just 20ish years. I mean, Luke was the man! Took down Palpatine and redeemed his dad! The galaxy was at peace! Nope, just kidding. The Emperor and Darth were just two-bit players in the Empire. They weren't really needed.