From what I've heard... They've actually tried to give Wrecking Ball skins recently, but with the Overwatch engine being so old giving him one more skin would just break the game, being unplayable...
Thankfully Wrecking Baby being added will fix this issue in Season 5.
when im playing the vr remake of ace attorney 1 in 2036 and the headset genuinely shoots 600,000 volts of electricity through me when I get tased by von karma