What is next? Hmmm - well, I have to finish work on an "Acute Sharpening System" - kit of parts, long left on back burner. Then, Intend to do some renovation on an old Maytag 92 engine. Then, some restoration on a very old blow lamp.
I am working towards designing a draw bar system for my (old) lathe spindle in order to try and lock the chuck on a threaded spindle - and then be able to safely run in reverse.
Beyond that - who knows! Various odds and ends that crop up! All however being dependent on standing time in the shop - back and hip arthritis make for considerable limitations.