Well, I am 37 on Rp - PvP and I practically live in warzones when online. I do not think the balance will change much, since Empire storylines are so much more interesting (Republic storyline is like the cheap Allied/NATO war - propaganda - utterly naive, at least compared to Empire).
But I do not call for Empire nerfs or something. I still enjoy the game immensely, despite the population imbalance factor.