Well, folks, we have a title and release date:
Full Metal Panic! 11: Zutto, Stand By Me (Jō) (Full Metal Panic! 11: Always, Stand by Me Part I) --
July 17
Link to ANN story:
http://www.animenewsnetwork.com/news...r-july-release
Key line in the article: "Gatoh no longer states this is the final novel." Good Lord... haha.