[No Spoilers] Chained Oblivion Plot?

In each of the campaigns, there have been small references to Tharizdun/the Chained Oblivion and keeping it sealed away. I’ve always been super interested in the latent threat of the Chained Oblivion; Matt does a great job of reminding us how powerful and terrifying Tharizdun is. Does anyone else hope that we see more of the Chained Oblivion in future campaigns?