Sonic Generations will have a special edition. And what a collector it is! :D
SEGA already released plenty of Collectors over the last couple of years.
Most of the time exclusive to Europe (don't "BOOH" on me, it's because of the people who buy them in the first place, it seems they sell poorly in the US usually, so Sega prefers to skip them there...).
But this is a first for a Sonic game!
This 20th Anniversary special edition (will join my 10th Anniversary edition of Sonic Adventure 2 on the Dreamcast and) will be released on November 4 for the HD systems.
(and later for the 3DS)
It will feature an special limited release of the game, "free" DLC (I'm betting an extra level for retro Sonic from the looks of it), a figurine containing both retro and modern-Sonics, a (numbered) Gold Ring, an artbook, a documentary "The Story of Sonic" and finally the Sountrack itself! (let's hope it will be as good as usual Sega quality~)
But not this game's OST, but one featuring songs from across the franchise...which is kinda in fact the sountrack of this game to begin with...!
And it seems there will be a simpler cheaper Special Edition too with just the DLC-stuff.