Actually when you first picked your legacy it didn't tell you it was for all your characters, many people believed it was a surname for the character you was playing not for every character on the server. I think a one time only rename should be viable option, maybe something you could spend some legacy levels on?

All I can say is NO, the voice overs are what makes this game stand appart from all the others. Also of note the different class storys have kept me rolling alts, so it keeps me hooked, but yes different planets to level on would be a good idea but it is far from boring playing alts, I love my alts as much as my main and havent been bored at all. And one last comment, the instancing makes the quests fun and involved as they can be scripted, this makes them immersive and fun.