A voice pitch slider wouldn't mean hat they would have to hire anybody else for voice acting, just means that you can change the pitch of the voice of the preset voice over for you class, like on ps3 how you can change your own voice pitch, just something to implement a difference in game. That would be easy and probably wouldn't cost really anything, the software is already out there.
and not really as far as customization goes, swg, mortal online, even rift had better customization, its not to bad, but more options are definitely needed. this game is awesome, i love it, and i never expected it to be perfect but with these three things i will be satisfied enough to only complain about bugs and overpowerness like the BH's rocket attack which right at this moment i cant remember the name exactly, but i know it sucks in pvp lol when i say the game could se these 3 things, I'm not saying it blows because of it, I'm saying it would be fantastic with them in it.