They will nerf him, but if the first season does well they will bank on the new budget to take things further and beyond. By the third or fourth he will be dealing with mainly Reverse flashes and Grodd as those are the only ones that can best him, The other street thugs will have to come together and form the rogue to be a threat.
Really at the end of the day things are only going to be interesting for flash and revere flash, as both coexist together, one cannot kill the other without killing themselves. So the tactics and strategy will be employed with trickery, time travel etc.