Zen is making a new Key calendar for sale on April 12th, or at least that’s what Google translate tells me the gist is.
http://www.pixiv.net/member_illust.php?mode=medium&illust_id=49641429
I will figure out a way to buy it, if only for the hilarious/awesome page where it seems like all the Key protags are together in nice suits, with the exception of Riki, who’s wearing a red cocktail dress and heels. (At least I think so)