For me it is clear that IBM/HCL won't continue anything reagarding XPages. They sayed nothing about it, which is a clear indication that exactly this will happen: Nothing.
Because of this unclear situation I started with other technologies running on top of Domino years ago, and at the moment this seems to be a good decision.
When you discover you are riding a dead horse, the best strategy is to dismount...
If you need assistance / guidiance for other technologies, feel free to contact me. Or look at Jesse's approach with Open Liberty: https://frostillic.us/f.nsf/posts/be9501a07279b40d85258377007b0dfd