As someone who bought both Division 1 and 2 on release, I would say PVP is the weakest in Div 2. Gunfights with other players feel totally lackluster and random.
On the other hand PVE in Div 2 is really great. Campaign missions are very solid in Div 2 compared to Div1.
Yeah, a new non VR SP IP or a sequel would be best. They can't count to 3 so a sequel doesn't seem likely. Portal is my favourite and would love a sequel but don't expect one. I think I'll take whatever if they bring it on consoles too. Might go for VR as well.