So the only way to progress our DoH/DoL tools will be Cosmic Exploration?

[CVXIV]

I haven't seen it yet myself so I can't say, but Ishgardian Restoration had its own relics associated with it so it wouldn't surprise me if these would be the equivalent and we'd get something akin to the resplendent tools later down the line

[TaleraRistain]

I haven't seen it yet myself so I can't say, but Ishgardian Restoration had its own relics associated with it so it wouldn't surprise me if these would be the equivalent and we'd get something akin to the resplendent tools later down the line

We didn't have any DoH and DoL relics for Ishgard Restoration. The Skysteel tools used the Firmament but weren't connected to that questline.

It does seem that Cosmic Tools will be tied, though, since missions are a way to upgrade them. I think that's not the right move. Relic questlines should be independent questlines to help them stay evergreen in the future. I think there will be less of an issue since DoH and DoL rely less on others than with relics tied to field content, but I'm opposed to the entire idea in general.