There has been a lot of conversation about enabling PvP brackets similar to World of Warcraft on the official SWTOR forums. I'm against this for the following two reasons.
- There are no cross-realm servers for PvP. Everyone in the warzone is from your server. Spreading people out over different brackets would most likely have a negative effect on queue times. I'd rather being fighting higher level players than not fighting at all.
- I like the option of PvPing with my friends even if they are not in the same level bracket.
Later in the game, I'd advocate splitting the queues into two brackets. A bolstered 10-49 bracket and a bracket exclusively for level 50s. They'd have to wait until the level 50 population is high enough to support that, however.
Happy to hear any thoughts or disagreements that you might have.