Extra Content that Teaches Game Fundamentals
I would like to see mini-game single player challenges that teach the player game fundamentals. Using the goblin map as an example format, each challenge would have a different objective and highlight a specific game mechanic.
Examples: Troop Funneling/Pathing Destroy certain buildings without destroying others.
There could be many challenges that do this in a variety of ways from simple to complex. A small group of archers pathing their way through a map full of builders huts. Clear all the blue builder huts, but destroy a red builder hut and it's a fail.
Pathing of DTUs (Defensive Targeting Units) Basically challenges where hogs or loons would have to be deployed correctly and follow a path.
Wall Breaker AI Different maps that force the player to learn how to deploy wall breakers to destroy certain walls or areas. A map full of walls and mortars. Your comp is several giants and all wallbreakers.
I will stop here to keep it short, but there are many others. The people that struggle with these fundamentals just need some practice, and this type of content can help them learn.
I would also like to see Supercell provide the troops or heroes for these challenges. It will force the user to use the correct amount of specific troops for the challenge.