This seems to keep getting delayed / postponed. Perhaps not enough submissions? Perhaps not enough appropriate submissions. I don’t know. But if you were thinking of writing something, but got too busy or didn’t finish in time, then Good News, the new deadline is September 3rd.
TESOL International Association is seeking submissions for a volume about classroom applications of corpora.
They are looking for straightforward, practical things that can be done with corpora.
I think the deadline was originally in the middle of May, but it seems to have been extended to July 15.
Check out the link above for more info about what kinds of submissions are appropriate and how to submit.