There is no amount of money that could make it happen any faster than it would already. I update ISXEQ2 as quickly as humanly possible given my schedule, and my schedule isn't adjustable.
As I mentioned before, expansion patches are not usually a big deal -- the "big patch" typically comes a couple of months prior (i.e., the one we had back in September.) I could be wrong, and we'll certainly see; however, I figure it will be very similar to every other weekly patch with regard to how quickly it's released. It might be an extra few hours, but I don't expect it to take multiple days at this point.
Besides, delaying the release of ISXEQ2 slightly after the beta comes out levels the playing field for those players that want to play traditionally and have a chance at getting server/world first achievements, etc. As I've stated many times, I have no desire to ruin the gaming experience for other players.