In 7.1 They've made it clear they want to take their time before releasing new expansions for WoW in future, which suggests that wow will have plenty of content between now and 2 years before the next expansion launches.
Frankly, I feel this was a step in the right direction but it begs the question, what next meanwhile for the Warcraft franchise?
Well they released a movie recently, and finished SC2's main campaigns with only Nova Ops left to finish.
Conclusion:
Warcraft 4 is looking increasingly plausable.
Hear me out as to how this could and probably -will- work:
WC4 will probably take place as a seperate conflict with an expedition by the alliance/horde to a completley new world, thats my theory, probably set years in WoW's future.
We know the Void Lords are a thing now and I -doubt- we will fight them in WoW's timeline especially given the comics, which makes me conclude, they will be a playable faction in Warcraft 4.
My theory is this:
WC4 will have 4 playable factions, like WC3 did, only this time it will not be humans/orcs/nightelves/scourge.
It will be:
Alliance, Horde, Legion and The Void.
Legion may actually end up being a redeemed villian faction in WC4, given the anti-villian storylines were getting from the Legions motivations lately, possibly helping the heroes and even becomming a heroic faction itself, with the demons being driven to wipe out the darkness, no matter what.
This would give rise to new characters, new villians, new potential threats beyond on this new unknown world to colonise and occupy.
The Campaign could potentially work in a -similar- manner to that of SC2, but with more perspective shifting rather than a single linear faction per campaign vibe. Possibly being a 3-4 story episodic campaign with multiple expansions adding new story perspectives.
Gameplay, I dont really know, im mostly focusing on the lore side of things and where blizzard -could- go if they make a WC4, which I believe tbh, they probably will if only to continue making RTS games.
I suspect if SC has a future, it will be in the form of 3rd person RPG/FPS or adventure games like monkey island (or tales from the borderlands).