The Disney Captain Nemo prequel has sunk (no, I’m not sorry). Shame, as having read a lot of Jules Verne as a kid, I would love to see something like this (the Nemo stuff, including his cool retro-tech was the best thing in LXG and this is the hill I will drown on (no, I will not delete my account). https://collider.com/nautilus-series-cancelled-disney-plus/
The first season is done, so it will probably surface somewhere. There is a giant hole in the tv schedule right now.