They'll announce D4 in 2016, with powerful graphics, new physics engine, more monsters, new mechanics, the return of necromancer and finally a new spellcaster class that works.
The cutscenes will be something to lose your breath for. The gameplay videos will be amazing. The dungeons will be dark, full of horrors. There will be blood, terror, and difficult gameplay.
You'll be able to trade items with your buddies, and even buy and sell materials. The craft system will be improved and meaningful, since they learned everything that was done wrong with D3.
Unfortunately the game will suffer some minor delays during development, and Blizzard will release D4 in 2026. It'll cost USD 149,99, but hey, you'll get a DRM-online-only game that'll be updated and rebalanced everytime needed, and you can trust Blizzard to rebalance stuff, since they always did it correctly with D3, right ? Right ?
FML. I only liked to play this game with Wizards, and they screwed my class so badly since RoS that all I can think about them right now is rant.