Just minutes ago news has broken (VIA a next-gen.biz update) that Yuji Naka, head of Sonic Team throughout the Sonic the Hedgehog series, is planning to leave SEGA/Sonic Team shortly. Details are uncertain at this point, however it is understood Naka will be forming new game development studio, which according to rumours, will still be in alliance with SEGA.
Further details are still yet to be revealed, but stay with SONIC NEWS to find out as it breaks.