Just an idea. Probably has been put forward before or has crossed the SD team’s mind but I’ll post it here just in case.
DB being a F2P game part of its revenue will come from cosmetic items.
Reading another post requesting modding it reminded me of the game Loadout, where they’re using the likeness of Stallone and Mr T in their characters.
Although I’m not the target audience I can predict many users would pay to have their characters looking like famous personalities.
Not sure if Loadout have paid any licensing fees for the ‘similarity’ in their characters (since they could be allegating some kind of excuse to avoid paying it) but it could be something for SD to look into.