I thought I would start this topic as I know everyone is likely thinking about it.
Bryan that develops FS2Crew has indicated that this is a priority project for them pending an SDK. The rumour mill has that the SDK for the MJC-8 Q400 won't be released until the pro version which is slated sometime in the fall (again likely). It could be a while.
http://forum.avsim.net/topic/405264-fs2crew-for-mjc-dash8-q400/page-3
If we find any new information, let's put it in here, just in case the pilots ask about it and want to know more.