These are, in my opinion, things this game needs. Please feel free to disagree and state why.
1) Less “pay to win”
I suggest that all of the decorations should cost gems, and that many more decorations should be added to the game. Builders should cost gold instead of gems and a 6th builder would be a good idea. Boosts should cost less gems. These types of changes would go a long way in making the game feel less “pay-to-win.”
2) More resources and a new DE drill
First, I think level 12 mines and pumps are due, probably for TH8.
Second, I believe that one more dark elixir drill should be available at TH7. I really hate that you get a dark elixir storage and dark barracks at TH7, but you have no way to farm the dark elixir until the next town hall level.
3) Heroes are a bit on the OP side.
The king and queen right now are basically one-man armies offensively, but they are too easy to lure defensively. I think their level 1 power needs to come down, the range to pull agro on defense should be lowered, and their max level should be more like 20 instead of 40.
Ever notice that no one, not even top players, have completed the “Unbreakable” achievement? I think heroes are guaranteeing too many easy victories.

