Yeah, they did a nice job with them. I've had the SR OST tracklisting for a while, at any rate... I'm just not entirely sure which track is which beyond the individual character themes. Those ones I'll have to manually loop, unlike the STB ones. Makes things more obnoxious.
I'm betting that World Heroes Gorgeous will have a similarly revamped set of ASTs to accompany the games.
Who knows? Maybe they'll give us a new SS1 AST instead of the anemic one that accompanied the Neo CD release. They've been doing a pretty bang-up job on their new ASTs ever since SS5.