The official Sonic Twitter is at it again with teaser posts, but this one may be the least cryptic so far, and it highly suggests a date.
@vinylspincycle Seven hundred and twenty-two.
— Sonic the Hedgehog (@sonic_hedgehog) June 8, 2016
722. 7/22. July 22nd, the date of the Sonic 25th anniversary party. If you weren’t interested about that date now, it may just be the time to change that.