I'm not sure where you got that info saying the camera is fixed, the developer hasn't said it. It may or may not be fixed prior to release, depending on how much work it requires.
Here is the latest post by lead combat designer on their forum, going over the camera system earlier today.
Link
It's pretty detailed on their thoughts about the system. Wasn't sure I should just copy/paste the post, will update if it's alright to do so, go to the link otherwise.
Regarding the dev comments in the post linked. For the PC version, I would definitely prefer the camera controlling like WoW,SWTOR. While neither is an action game by any definition, they both feel better while controlling the character, compared to Reckoning. I control left/right movement with the mouse. Strafing, fw/bw with keyboard, in both games, and there is no lag between camera/character moving.
It's a little concerning a dev hasn't spoken about the lock on system being extremely flakey in how it works/doesn't work, unless I missed the post.