They shifted the focus in the Sega Ages line once Virtua Fighter 2 came out and they're not doing cheap 3d updates to the games (well, not all of them). Space Harrier, Gain Ground, Monaco GP, Phantasy Star, and a few others turned out pretty damn awesome but for the most part D3 did a really disappointing job with a lot of them. I liked Virtua Racing but wish they had included the original physics and models.. *shrug*

I suspect that a lot of the newer ones will be 1:1 translations of the originals, especially since Sega themselves said that Galaxy Force II will be the first perfect home port of it.... which is good news since it'll look nice on my shelf next to my not-so-perfect Saturn copy :(