- The next WoW expac is announced. It focuses on Kul Tiras and the nagas. The void will be in the background (perhaps for the expansion afterwards).
- No new classes, but playable Vrykul and Nightfallen.
- A completely new gear slot which uses the artifact mechanics. We go back to normal weapons.
- Overwatch announces a new support character. A male healer that heals like Ana or Mercy.
- Diablo announces a new Druid class for 2018, released much like the Necromancer.
Those are my wild guesses. Of course, by the time you read this, Blizzcon will probably be in full swing. What do you predict will be announced?