AuggieBenDoggie said:
In short, it would be very hard killing lando off and making it work. He would have to take lando totally out of ROTJ to make it work and then that would be extremely hard to do.

Just rotscope Lando out of any scene he is in. Leave in the scenes where Lando is talking to Han. That way Han could be seen as having gone insane from being in Carbonite. Have Lando fall into the Sarlacc pit and Han snaps trying to "rescue" his buddy.

Kill Leia during the speeder bike chase. During the "real mother scene" Luke looses it as well starting to talk to the Leia that isnt there. Both Luke and Han could be seen "talking" to no one.

Have the Ewok trap be spikes that kill Chewie

Wedge blows up the Death Star, the blast anihilates the rebel fleet and the debris decimates Endor

No fortune-cookie, main street electrical parade, after school special, happy happy joy joy ending there.