I don't think there's any news on NECA's part to currently make any more 1/4 scale figures. A dog ALIEN would be meat, though.
That, and a Predalien would be great, too! Considering the stupid prices their older Predalien now goes for, a decent re-release would be welcome. After all, both the Dog Alien and the Big Chap have had multiple releases - at least 5 apiece from NECA.
I'd also go for a 1/4 Stompy, as well. I doubt that will happen ...but yer never know, huh.
-Windebieste.