Funcom has a history of failed launches for MMOs. I wouldn’t put it past them that they fail at Dune either at launch or with various in game mechanics/unfinished core features.
You wont get another game like AO with its skill system in any MMO ever. From here on out every MMO is going to be a WoW clone in some way.
AO2 is a bad idea from the start. Why create a game that competes with itself. The MMO market is saturated. The only way to get a piece of the pie is to bring something to the table that has an already established market.
From a business standpoint, AO2 likely wouldn’t break even. I’m not clear about the number of developers it took to make AO but even with off the shelf tech the game systems, art assets, and content would have to be made. That is a lot of designers to hire to make the next iteration of a game that probably has like 500 regular players.
It would be more likely that AO would go down and somebody would have to crowd fund the licensing and run a really tight volunteer group of coders, designers, artists.