I read that the next-gen "Haswell" Intel processors are going to offer 50% more performance than the current Ivy-Bridge architecture.

The jump from Nehalem to SB and IB was 10-15% at best. I think it's time that Intel puts out a processor that offers a major performance gain like the Core 2 quad to the first-gen Core i7, which was around 50%.

I am hesitant to build a new 3770K gaming rig for Christmas knowing that the Haswell processors are right around the corner for Q1 2013.

Should I wait for the Haswell to build a new gaming rig?