Besides savage and ultimates, the game has been getting easier and easier.
I (and I know many others), would like to see the game up the difficulty in dungeons and AR.

I believe Guildhests are the key to this.

Guildhests should be used to teach raid mechanics.
Use Guildhests to lift the bottom end players. Shrink the skill gap.

Increase the roulette xp earn, and rework all of them into raid mechanics from 50+.
2 mechanics per.

This would allow Square to increase the overall difficulty.