I'd be pretty annoyed. How would you feel if they made Sylvanas the 5th Horde leader to bite the dust? After killing Cairn, Garrosh, Vol'jin, and removing Thrall. Do we really need another? If they kept Vol'jin alive or brought him back, I'd be ok with it. But seriously, who would we have left beside Lorthramar and baine? Gallywix and Ji? And maybe a really, really old orc? Probably not the best time to make her a baddie. Not until they establish the others more and add some really cool horde leaders.

Please Help.
Thanks !

I didn't find the right solution from the internet.
References:
-http://www.mmo-champion.com/threads/2283317-How-Would-You-Feel-if-Sylvanas-Dies
- Inventory management video Examples