From this recent Interview Bioware has changed their mind again about Advance Classes and the ability to respec between them. (eg. Juggernaut to Maurader or Powertech to Mercenary)
They have decided that your AC choice will be a permanent one at level 10. They believe that once you choose your AC at level 10 you are to stick with it since if they allow you to switch between AC's it will allow for FOTM gameplay and thats not something they want.
The interview is in german so google translate can only do so much but you get the point.Is it possible to change his Advanced class?
We have changed her mind again. It will not be possible to modify the Advanced class. We believe it is currently not necessary. Talent trees are to be reset but can not continue to the advanced class. At least not at launch. Probably not.
What are your thoughts ... Discuss :P
PS. you can also listen to the interview in English here