This probably didn't need it's own thread given I kinda made a general thread for a reason. But yeah I imagine Sega's taking their time for whatever they have planning for the 25th Anniversary. Though it's not like there isn't some Sonic stuff to hold us over.
I won't count on it being a Sonic Adventure 3 just yet. And in fact I'm not really expecting it to be Sonic Adventure 3. It is a mystery just what they're going to do though. Even if I feel it hasn't been as bad as some people are saying from the time we got Sonic Lost World (Which personally I enjoyed despite it perhaps being the most divisive Sonic game since Sonic Unleashed) all the way to the present (Some people even thinking we're in another Dark Age of Sonic which I find ridiculous) there is some degree of uncertainty of what's next as we reach the franchise's 25th Anniversary. I think I said in the general thread is we've had two Anniversary games that were successful in both Sonic Adventure 2 and Sonic Generations, however you can't look past that the one we got on the 15th tarnished the franchise's reputation forever. So while it's exciting to speculate what they could do for the franchise's 25th, it's also kinda scary.