I'm pretty sure I already made a thread about FM2005 :undecide:
Anyways, it will be the same match engine, altho modified. SI have also said that preliminary tests have shown that FM2004 is 30-40% faster than CM 03/04, but they have added a few things since and need to further optimize the code so they arent putting out any official figures. The FM Magazine will be out in late September and the Beta Demo will be available for download just a few days later.