A-M is under a once-in-a-lifetime stress right now. Naisho no Tsubomi, He Is My Master, and Ichigo Marshmallow are all being translated at once-- the latter two are released only once a year, and the former only has one volume. These are all being edited by Censored Vagina (who, as you may recall, is too cool for SA). So, you might have to wait a little bit for NHK, but something new will surely be out in June.