The hankmorgan project isn't dead, it was ported to godot at one point, and there's been lots of activity lately :)
I'm not allowed to post a link, but it can by found by searching for underworldgodot.
Made an itch.io account just to say, thank you so much for making this! I've been wanting to play Ultima Underworld a long time, but found it really hard to get into the old control scheme and UI. Playing this version, however, is buttery smooth. Looking forward to kb/m support, but it works incredibly well with a controller too. Happy to finally experience this classic.