Minecraft Already Know The Next 3 Major Updates & NEW Combat Mechanics Coming

The latest news coming out of Mojang is during the current creator summit in Sweden. Every year starting May 2017 Mojang have been inviting content creators from YouTube, Twitch & the internet in general to their main head office. During this event Jeb and the other Minecraft Developers have been giving these creators a small taste of what is doing to be happening over the next 2 years for Minecraft, I can tell you it's exciting! During this event @Docm77 on twitter a long time Minecraft Let's Player has been sharing this info with the community.

Expected Things:
1. Aquatic Update was delayed
2. Mojang know the next 3 major updates
3. NEW Graphics options coming "fancy" & "Super Fancy" ( possible SDGP )
4. The combat being reworked

Source:

What do you think about this? if we are getting 3 Major updates what part of Minecraft needs to be worked most?