Well, this is a late breaking development that I don't think anyone saw coming.  

The Anaheim Arsenal, who are currently being run by the D-League itself, are apparently heading from the West coast to the East coast - playing in Springfield, Massachusetts at the MassMutual Center.

Here are a few of the highlights I picked out of the press release:

The new team will be owned and operated by Michael Savit, who has also been the managing partner of minor league baseball teams in the South Atlantic League, Midwest League, Southern League, California League, Coastal Plain League and New York-Penn League.

Savit and his group have been awarded the right to relocate the NBA D-League team currently playing in Anaheim, California to Springfield. While the local ownership group will have the option to retain rights to current Anaheim Arsenal players, they will announce a new name, colors, and a mascot for the Springfield team later on this spring.

Now we've got 17 teams in the D-League next year, without any rumblings of another team being added for next season.  Interesting.  The only other rumor I'd heard was Frisco, Texas getting a team, but that was going to be the Colorado 14ers.  With this, it seems they'll either fold or maybe get into the hybrid affiliation with the Nuggets, leaving Frisco with a new team.  I don't see the league going with an odd number next season.