Upgrading from that CPU would make zero sense whatsoever, as
one: they're both i5's so the performance gain would be minimal
two: you would have to upgrade your motherboard aswell
If you feel like you don't have enough processing power, which I highly doubt, I would suggest to wait a little for the 5XXX series, or save some money and get a:
decent board overclocking board paired w/ a i7 4770K or 4790K
or
get basically the board you feel comfortable with paired with a 4 core 8 thread Xeon (1231V3 1230V3 and some more I can't think of right now)
With those processors the power is more than enough for gaming and plenty for editing aswell.
**edit
@Karsten75
4670K is not Devils Canyon,
4690 is.