Most of the key staff from the original SOR series moved on to create "Fight Force" (original, not the sequal) for the PSX. They then went there seperate ways.
It's rumor'd that the Sonic Gems release was to have SOR here in the US. Yet, those were squashed. I'm still hoping for a "Sega Ages" release of them. Then, we can have another compialation of Sega Ages games, as we already have.
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Currently Playing: Kindgom Hearts 2, Crimson Sea 2, Dynasty Warriors 4: Empires, Baiten Kaitos, & Lunar DS