-Bespin Mining Station from original JK...Still my favorite
-Definately the "Infiltatrate-the-Imperial-Base" ala Dark Forces
-I like the Endor Map idea
-There was this one user-made level for Dark Forces that involved a Gamorrean castle. It absolutely rocked.
-Come to think of it, we need an entire port of Dark Forces, hehe
-Jedi Night Club
-Ever seen BFP2? Thats what we want
-MP RPG(like Barons Hed RPG for JK)
Thats all i can think of right now. but these would be cool.