Level cap: why? Please don't. No level cap is one of the reasons I enjoyed Freeworld, it allows customization.
Movement and attack: An attack is stopped during movement? I loved the fact that I could play an archer, run and shoot a bow at the same time.
-- The same could be done for spellcasters... I just don't understand the point and click, it's boring; If melee has to aim, so should spellcasters for single target spells?
A level cap is not necessary for PvP. I remember you mentioning flags to implement? Can't do also implement some preventative methods, on level restriction in PvP, just as you do for the zones? How about an Arena of some sort? It really doesn't have to be an arena... you could call it something else. =/
AoE spells and multiple target melee attacks: I also enjoy being able to damage more than one entity at one time; And the game engine has collision that would allow melee targets to damage more than one entity simultaneously.
I LIKE the group XP idea, this will benefit healers very much.
Like the guild tags Idea. (How about unions, corporations, ect?)
I like the weapons style idea. How about spell styles? You gain passive abilities depending on use of the def/off ability.
I assume intelligence is stacked in Wisdom. I hope so.

What stat will affect crafting?
PvP 3#: You know what that reminds me of? hehe...
Guild Control Points: No matter the details, they will all be mine.
Looking OK so far. KUTGW!
- The All-Father