There is a small thread of hope with Hoary Boulder and Coultenot mentioning they were going to go and assess the situation in Corvos to see how it was faring in the wake of the Final Days, though I'm feeling uncertain if they're going to even have another Eureka/Bozja-like zone which seems like the most likely sort of content it would be featured in (Assuming it doesn't end up as part of 7.0).

My initial thought was they'd discover the place is still a blasphemy-infested hell hole that the locals need help cleaning out while also touching on the plight of Garlean-oppressed peoples there who likely would've accounted for the bulk of those who turned, but now I'm feeling more then a bit doubtful.