Skoll Shorties

You'll get your own campaign but I don't think the Alliance is going to strictly get the raid to kill Azshara that's just not how things work. I think their story line again will be far more personal with Tyrande, Maiev, Malfurion, etc.

I can't see that happening unless its a joint effort between both sides. Personally I think she'll escape.

I'm not against it but I wouldn't strictly have no Horde characters in the cinematic. Tyrande can have the killing blow (when she does die) but they'll still be Horde involvement regardless.

In Legion the Alliance strictly had several of their characters in the cinematics where a character died. Thrall was in like two of them for Cata and WoD while MoP included everybody from both sides. I think its better to play it safe and include both factions for Azshara.