Highly doubt that. LSM is too smart to do something like that... and with his pattern, I can almost predict what's going to happen.
SNSD came back in January. Two months later, Super Junior came back in March (but before SHINee's comeback, Super Junior comes out with a second single). Two months after Super Junior's comeback, SHINee will come back later this May.
My prediction is that he will have SNSD come back in July (probably around Seobaby's birthday, but definitely before Tiff's birthday) and either END or choose a second single to do on September 09, 2009 (2009/9/09). Why? Because almost two months after Super Junior's come back when someone else should have come back, they released something new. SNSD talked about how bad they felt that they never got to promote something else (well that's because Gee fuckin' owned first half of 09). So I really have a good feeling that they'll make a second come back in September before someone else comes back (CSJH!!!!! because if you keep up with their JPHIP thread, you'd know why).
-O_sLaVe