And what about Haswell-E / Skylake ?..I can wait since that one has 6-8 cores and seems highly better (i say Seems..because i don't know any improvements about it,not even Skylake)
If i wanted to make a jump,i'd change my MB CPU and RAM to next gen (Socket 1150/2011-3, i5/7, DDR4) that it could last for many more years...and so the GPU (Nvidia's 800 series)