In the end it always comes down to enough new players coming in and that tends to happen either in a limited way or everyone at once when there is hype for some reason.
I never heard of World Super League or Ultimate Champions. I'm also not sure if I have the time for a 4th NFT game to really get into.
They are Sorare's competitors at the moment, although they are targeting different audiences.
WSL & UC have a different format in terms of card design, pack presentation and gameplay, as well as a smaller market and a native token.
I have them on my radar because they are currently more profitable than SORARE and require the same amount of time.