Hmm - that'll depend on whether I can get my hands on a build of Java that's been compiled for Apple Silicon and has a license that allows for redistribution. That'd probably be possible? Probably? But it's not something I can actually promise.
If Apple removes OpenGL support, though, that'd be a much bigger hurdle. If that happens, about the only thing that might make the game run on OS X would be a third party OpenGL-to-Vulkan emulation layer. Which I understand there are people working on them, but that's far from a sure thing. Overall, I don't have any certainty about the future of the game on OS X, but I do have some concerns, mostly about things that are... not *technically* entirely out of my hands, but for practical purposes are.