While I understand what you are saying I disagree with your proposal. Moving to 18.04 might be a bigger task than moving to 16.04, because in 16.04 Touch was still being supported and Canonical had already done at least some preliminary work.
My question was intended for the devs, and I didn’t mean to start a debate among us users. But I appreciate your reply. What’s more, your reply demonstrates that I may not have sufficiently articulated my thoughts.
You are, absolutely and without question, correct that moving to 18.04 will be a much bigger task than moving to 16.04. That said, provided a few puzzle pieces fall into place (and it looks like some of them are starting to fall into place), moving to 18.04 may go faster than you expect.
To clarify, I fully support completing 16.04 OTA-4, and I fully support completing 16.04 OTA-5. However, with regard to what would be “good enough” for 16.04 OTA-5, my thinking is that, provided some puzzle pieces fall into place for 18.04, the devs should focus on the “bugs” listed in the milestones for 16.04 OTA-5 and leave the “enhancements” listed there for a hopefully soon-to-be started 18.04 OTA-6 or 18.04 OTA-7. Of course, what’s “good enough” may need to be reevaluated from time to time.
As for skipping 18.04, and waiting for 20.04, in my opinion, that would be a very bad idea. But your question seems intended for the devs, so I’ll let the devs to respond to your question.