In the name of the Pizza Lord. Charge!
Will be reading this in July, so here's a thread for any who do the same.
I haven't read any Riyria books except for The Crown Conspiracy (The Riyria Revelations #1) (which was enjoyable), but according to the man himself, that's not a problem.
All the books in this new series are already written, so if you do end up liking it there's no need to fear when the next one will be published. It will be next year.