I agree, the Cloud Car is a definite must...and one I think is do-able at retail. It isn't huge, so it should easily fit into the $15-$20 range as an exclusive somewhere (probably Target, if anywhere). I'm glad to hear that we're rumored to see the AT-AT and Snowspeeder next year as well, those are two that I missed out on the first time and have always wanted.
I like the playset idea too, and it would be cool to see the Yoda/Dagobah one repainted and re-released. They could probably spiff it up pretty nice with the paint apps, and it isn't so big that it couldn't go to retail. I think it would be a good seller too, because kids and collectors both seem to like Yoda (and Dagobah) quite a bit. The Death Star Playset and Ewok Village would both be awesome too, but we might have to rely on the vintage ones since retail seems shy about any big ticket items for the most part. I'd definitely pick them up if they did get re-released though.