From the looks and sounds of it they'll have a decent showing at youmacon which runs from the 2nd to the 5th of November, I imagine this is also the 'thing in November' Lumi and Dizzy were talking about on Phase Weekly. The youmacon website actually already lists nearly all of the Phase Connect members as featured guests and put out this tweet today, despite no official announcement from Phase yet.
Given how busy it gets around Halloween and how it appears they'll be all hands on deck for youmacon, I'd guess Gen 3 either mid October or early November after the convention.