http://stephenking.com/assets/marvel_pr_lrh/
i was reading about the great sales of the long road home issue one and noticed it said ''Plus, don’t miss Dark Tower: Treachery #1, arriving in September following the exciting conclusion of The Long Road Home!''
so im guessing we dont have to wait a year! and we know the name as 'Treachery' also! not sure if this has been posted elsewhere