I haven't heard any rumors about if and when.
But, if I was faced with this problem, I think I would perhaps make modifications to a mill post to make it suitable for use on the lathe for live milling. While perhaps not the ultimate solution, I think it holds potential. The main difference would be the letter names of the various axis, for lathe compared to mill and those can be modified.
Of course, one never knows the pitfalls until you try in earnest, but I think Peter at OneCNC UK did attempt this already. Maybe he will report in.