I had a feeling for a while they were going to bring Lahabrea back in some capacity. It felt weird to me that 5.0 would specify him as one of the three Unsundered, and then name drop him a few times, if that wasn't the case. There wasn't really any reason he needed to be unsundered retroactively for his role in 2.0. So will be interesting to see what they have planned for Pandaemonium with him.

I think he also had a chat with Elidibus in one of the 2. X cutscenes that implied Lahabrea had his own goals and not just following the will of Zodiark? Him saying something about things going along to his will and Elidibus correcting him to 'Zodiark's will' or something like that?