If you mobo can support and overclock a piledriver fx cpu, you may want to wait. I wonder how well it will overclock and how much it will cost myself.
Your mobo may yet be good for steamroller next year, but besides maybe a few slightly faster ivy procs, LGA1155 is done(Haswell will be LGA1150).
@jasont78: several tests of the piledriver architecture both here at tom's and at other sites(extremetech) have show a pretty decent improvement in ipc.
If fx8350 can trade blows with i7 quads(both at stock speeds), and both can oc, things could get interesting(fx8350 will likely consume more power, tho).