MIT was supposed to return this coming Thursday (April 12th), but a new show will be debuting in it's place. It's unclear right now if the remaining five episodes of this first season of MIT will air this spring or if they will be placed on hold until the second season this fall. If it doesn't air until Sept. it will be a 7 month hiatus (since Feb.) for the show which is a long time to not be on the air.

I hate when they do stuff like that. I really like Men In Trees and would like to
see the remaining episodes while its still fresh in my mind.

It returns May 10 and 17 for its final two episodes. The other three will be carried over to next season, so it will have 25 new episodes next season.