What would it take to add more conversion transmutor to auto-attack replacers?

Wouldn’t it literally double the amount of builds in the game if a few more default attack skills have the option of converting to other damage elements? I know it’s a bit of work to change the actual graphic skills but it’s shown that it can be done.

Now i know converting actual skills from gear is a pain and it’s a lot of work and requires new tech to even consider it which will most likely not be done.

Just a idea…