and quote the ability, and tell me why exactly. These ideas are mainly ones found suggested in some fashion on this forum.
Maelstrom weapon also have a chance to proc a stack on damage taken (PVP idea to make MW a more prevalent ability in pvp, simultaneously improved offense and defense)
Have attack power increase our intellect instead of just spell power (seems like a easier fix then trying to get us to function with a base mana pool, and we could have the same spell power total because of catas new stat mechanics)
Have our mana regen happen passively (like ret paladins) or tied to something that isnt melee, maybe even shocks (this would be to help with pvp also)
as for shamanistic rage (this one is my idea) it now has a dispell ability on it, i think it should make us immune to those that which we can dispel for 1-3 seconds after. otherwise we can get into situations where such affects are being spammed (thinking rated BG's) and its dispel effect becomes almost worthless.
edit: im sure the maelstrom weapon idea is me wishing it was used more in pvp, like how it can be used often in pve. but the other suggestions i think are ideas to fix things that are actually broken or inneffective in some part of this game.