I like this idea.. if you ARE going to have so many references to ANH, then why not make it a bit more logical? In fact, would it be conceivable to show a few ewoks on the picture fringe in the shot after the Falcon lands on Yavin 4 and you see the gang in front of the South American temple? Again, you'd only see them at a distance and in that one shot (say somewhere on the left of the screen, or possibly in the foreground moving branches aside/out of the way of the camera akin to some of the shots in SASQUATCH: THE LEGEND OF BIGFOOT), but it would be enough so when you get to JEDI:R, it would imply that the ewoks ARE familair with the rebels, as they kept an eye on them while they were staying there 4 to 6 some odd years prior.

It would also give some more motivation for the Empire, as they are not only repairing "Tarkin's folly", but have been scouring Endor for rebel secrets they may have left behind in the years since ANH. You can add a mission for the rebels in JEDI in that they have to destroy what is left of their old base, to make absolutely sure the Empire has nothing to salvage.

I still like the idea of rebels that have long infiltrated the Empire, as both stormtroopers and officers, and could be both on the DS and on the ground.