Can you elaborate on 2, 3, and 4? Unless I'm reading it wrong those sound like things you actually can control in Universe mode.
1 and 9 are probably not going to happen for licensing reasons.
5, 7, and 8 are good options, and 6 is uncertain. We had custom music on the PS3/360 gen but it disappeared in the PS4/X1 gen. The only games that I know of that support custom soundtracks (Fire Pro Wrestling and MLB The Show) were not on XBOX, and since The Show has gone multiplatform they've dropped it from the PS5 version. This one might be a situation where XBOX doesn't support it in the same way Sony did/does, so it's left off to keep the experience equal across platforms. It also might not be that at all, I don't know anything.
