With Main updating to 1.16 on Saturday and both Nether and End resetting, I think claims should be allowed in those worlds. Point being that when that rule was passed there was barely anything in the Nether and nothing in the End so it made sense for those worlds to be lawless. Now that these worlds have more substance it should make sense allowing claims. However, I would say PvP always on in those worlds and allowing griefing unclaimed bases.
I agree with claims being allowed now, as it does make sense, same with the unclaimed bases, but I do know that PvP always on probably won't be happening, as it would have to be in the overworld too, unless the plugin fixed.
I like the claim idea no raiding or pvp on. If you want pvp go to vanilla