Simple sweet to the point.
1.) More end game content.
2.) More armor/weapon variety (notice all the vog cub sets, Divine Avengers, Argent peacemakers.)
3.) Additional weapon (not sure what type but who knows what they could add.)
4.) titles of achievement (notice your achievement tab)
5.) PvP achievements (just for the PvP fanatics out there)
let me know what you think open to all criticism.