I think something like a chaos mode may have the potential to be a game mode in the future. There many people who like the infinite elixir mode which indicates people like intense battles.
so a chaos mode can have-
1/ 60 second match. Every game nowadays tend to have short version of the original game mode
2/ The cards should the strongest stats. Basically strongest stats that card has ever had( after buff or pre nerf). This will allow an out of meta game play
3/ there can be evolution and super troops.
4/ Faster elixir circulation so that this short match doesnt end up being slow