Will the current 90 gear be relevant for the new patch DoW/DoM gear?

[Jojoya]

The gear we now have available is what we'll have to use to make the DoW/DoM sets to be added in 6.05. We won't see new DoH/DoL gear until 6.1.

I would not pentameld the DoH set yet because we don't know what the recipe requirements will be. If you're like me and have a bunch of VIIIs leftover from Shadowbringers, you can always toss those on for temporary melds until we see the numbers.

You can pentameld the gathering set because we've got the main numbers to shoot for (3295 Gathering for +yield bonus / 3401 Perception for +Boon bonus) though you might want to hold off for theorycrafter recommendations if you min/max.

[Dogempire]

In that case, it depends on if you want to meld your DoH/L gear right now, or if you're okay with waiting on patch 6.05 (first week of January) to see which stats will be required to craft the new DoW/M gear.
If they keep the same pattern for DoH/L gear, compared to previous expansions, the next set will be added in patch 6.1.

Awesome, this is exactly what I needed to know

The gear we now have available is what we'll have to use to make the DoW/DoM sets to be added in 6.05. We won't see new DoH/DoL gear until 6.1.

I would not pentameld the DoH set yet because we don't know what the recipe requirements will be. If you're like me and have a bunch of VIIIs leftover from Shadowbringers, you can always toss those on for temporary melds until we see the numbers.

You can pentameld the gathering set because we've got the main numbers to shoot for (3295 Gathering for +yield bonus / 3401 Perception for +Boon bonus) though you might want to hold off for theorycrafter recommendations if you min/max.

Hm, good to know that melding the gathering gear is fine, will probably just hoard some materia come 6.1 then