Solved
Use case for credits in this game (May 4th 2020)
What exactly can you use credits for in game now since all cosmetics for myself at least seem to be unlocked as I recently bought the collectors or creators edition of the game when it was on sale. ...
As far as most know, credits were never really addressed once the Celebration Edition came out. I have almost 300,000 of them stored up without any use. A lot of the "Event" related cosmetic items such as Maul, Kenobi, Grevious, were put behind a kill wall (e.g. 5000 kills for the Darth Maul Skin). Sadly, I don't think credits will ever become useful now that support has ended.
We can only hope.
