Minor tweaks I would like.
Make the Ewoks a little less cute. They're like small furry Zulu.
Consequently, the land battle on Endor would be between as many rebels as they could land (they should be able to shove 50 guys in the cargo hold) more violent Ewoks, and a more capable and varied Imperial force.
The Jaba rescure reworked slightly to make a bit more sense tactically.