2) WTP builds moving to JIRO (bug 568553):
Still a work in progress. It's a good place for someone who wants to contribute in a way other than working on code. Other projects are seeing the same limitations we are, and a little ahead of us in ferreting out solutions to them.
3) Jakarta EE 9 and above*:
Bug 565498, about the Servlet/Listener/Filter wizards, is foremost on my mind--but it will have to wait until 3.22 as nothing has been prepared for it.