3.x support will come to toltec, I've been blocked by stuff outside of my control a couple of times. Including things happening in my life that I won't get into.

You can see the current progress here: https://github.com/toltec-dev/toltec/issues/820

As for the comment on the kernel change, that was actually an ask by someone in the community: https://github.com/reMarkable/linux/issues/8