Trailer says 10/15.
Apparently if you set your console to East Coast time, you can download an update that lets you play season 2 with the current roster using the new features. TJ Combo is supposed to come out tomorrow. Few places are calling it "Early Access", so maybe this is more of a beta for season 2 that people are getting. There are some streams up on Twitch if you want to check it out. I won't be able to play until Friday :(