Has Minecraft allowed Lua? If not, then, (95%) no.
At least, not by current Team Ulysses.
Heck, I'm not even sure Minecraft allows for plugins yet. Last time I looked (about a year ago), Mojang had still been promising support for plugins for some years and still hadn't implimented them. Bucket, to my memory, was a hacked in admin mod.
ULib is very portable for Lua games. Megiddo even had plans to port it a bit to another famous game that used Lua, but, guess what...we lost time and interest.
We barely have time to maintain ULib for Gmod.
Porting it to another coding language would probably be nigh impossible due to current teams time constraints.
I've been so busy, I've not played Minecraft for almost a year or more now myself.