Was hoping they would have shown something to give some of the core Sonic fans something to look forward to. Mind in 2005 when Shadow the Hedgehog was their big focus but showed Sonic 06 as a teaser, something like that.
I don't think Sonic 06 was teased in 2005, it was a private tech demo that ended up getting leaked. That also might have been at TGS. Depending on what they've got planned then there potentially COULD be something but it'll be completely behind closed doors.