I really feel that being that attached to this issue is either going to leave you eternally disappointed and making threads forever or make you quit and give 1.0 a proper burial.

There's really no indication that things like open-world dungeons are ever going to come back, and we all know how yoshida feels about 1.0. We've seen his compromises (treasure hunts, fates) and any future content will probably be expansions of those concepts.