I'll say Scout Trooper was a cinch until the end when a ton of votes came in for Bib and Sim Aloo. Luke just held on too. I'd buy a new SA Scout, but I'm satisfied for the moment with the POTJ version, its good enough for now for me. If they did do SA though, I'd be happy and I'd buy a dozen or so...
Han Endor is another one I want but its not a high priority
I guess the collected Jabba's Goons are the biggest glaring necessity"
From the Palace:
Fortuna (I guess, not high on my list but lots of people want one)
And from the skiff:
Kithaba (Vintage Barada)
Weequay Skiff Master
All of those people would lap up with a spoon, put out a few waves of them and I think they'd sell.
Ewoks are a little trickier, there's a probably legitimate notion that people hate Ewoks. That's only a portion of the population as the votes played out here (last year as well) I think a 2 pack of Chirpa, Wicket resculpt and another of Paploo and another one of the three vintys would suffice a ton of people. Hasbro seems reluctant to do anything here though