There are Very Strong Rumors going around that Lando Calrissian (Billy Dee Williams) may really only have a small role in "STAR WARS: EPISODE IX".
Apparently, His Role is going to be similar to Maz Kanata's Role in "THE FORCE AWAKENS" in which he will just point the Heroes in the right direction and that is it.
That being said, I really hope that that isn't true although I actually wouldn't be surprised if it was. I know that Billy Dee Williams (He is 81 years old now) isn't the same as he used to be and now walks around with a cane and his own voice has gotten a bit softer.
Still, If it turns out that it is true then (just to stay positive about it) I hope that it turns out to be 1 of the Most AWESOME Small Roles of All-Time!
JJ Abrams wouldn't do that him (He only did it to Han Solo because as we all know, Harrison Ford wanted him Killed Off and wouldn't come back unless they did it).
Oh I think it's at least possible if not probable. JJ has a track record of sometimes killing off characters or institutions in in a genre/serial story, just for shock value to hook his audience's emotional investment. So (IMHO) there's more than a slight chance.