Here are som releasedates taken from a store orderform. Looks like a very slow period for 40k between July-October. But I was wondering why the SM battle and mega-force are listed as August releases? Are they being changed somehow?

August:
Space Marine Battleforce (box) priceband Q
Space Marine Megaforce (box) priceband S

October:
Eldar Army Set (box) priceband TBC