While the parts will work, you are running the risk that your motherboard bios will not support the cpu without a bios update. In order to update the bios, you would need a fully compatible cpu to begin with, then upgrade to the Haswell.
As a personal note, you are dropping over a grand into a new rig, but are choosing one of the lamest motherboards around. If you are going to spend that kind of money to build a gamer, do yourself a favor and get a motherboard that will allow you to get the most out of your investment.