Stern doesn't have a summer title this year. The next game is set for the fall (anyones guess if thats sept or october, but I would bet its before expo so they can show it off at expo).
Quoted from Captain_Kirk:Different combination of teams work on different pins. It's not like the entire Star Trek team got pulled to just work on Mustang.
And with the Iron Man VE and MMR, Stern may not even have a summer title....meaning the code guys will have extra time on their hands to polish Star Trek!