1. Rival Wings is a 1v1 factions mode.
2. No. That just promotes bullying.
3. Double no.
4. Why even? Just leave if you don't want to be attacked.
5. That seems wholly unneeded.
6. Seriously no, we don't need FATEs in PvP.
7. You don't seem to understand what Beast Tribes are to suggest that.
8. "Bully them for more bonuses."
9. Why even. Just. Stop. We have an arena, we have ways of making in-game tournaments, what even is a PvP "mini-game"?
10 and 11. "Let's all just join one faction and bully anyone who's foolish enough to join the other side." ala Cerulean Order and Crimson Legion in Blade n Soul.

Open World PvP is almost always a one-sided bullying fest. And none of these ideas would make it better.