This violates several rules on this forum, so no. Consider your idea rejected in its entirety. Furthermore, new character submissions are not currently open anyway and aren't likely to resume any time soon.
Not specifically planned but it might happen.
Yeah, but you'll just be an "elf" regardless of what type. Game's not smart enough to figure the difference, basically.
No more classes. You can make your own :P
There might be trainers or ways to get groups of powers (like the kitsune, or the archer) that have a theme to them, but that's all they'll be: a set of powers.