I tend to assume it will happen, it would be very strange if it didn't.
The gun buffs can easily be swapped out for identical sword buffs, bomber gear would need a bit more thought (swap asi for msi?). Bomb walk speed is clearly an issue in light of the new gun charge walk speed.

I believe the Shadow/Fire combo is proving to be popular, at least as far as recipe sales indicate.

The problem with crafting new armor (for me) is that it just doesn't beat the combination of chaos, black kat and seerus that I have backed up by sets that were entirely made to resist whatever status effect; e.g. vog with fire UVs, mercurial demo with shock UVs, dragon scale with poison/fire UVs....

It just isn't good enough or interesting enough for me to even begin considering grinding out all of the fire crystals needed to make new armor, because all armor does about the same thing and I have armor that does what I need it to.

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The best course of action would probably be to do away with the new armor. The models, and additional possible models could easily be released in a prize box as costume armor- no work would be lost in this fashion.

Instead of balancing updates for each of the weapon classes alone, a fourth update could be delivered to address all of armor and possibly shield balance as well. Whenever this update does come out, the new class armor could be one line whose bonus is to grant you whatever status resistance, defense type, and damage bonus you'd like on the fly... with a small negative penalty to all non-chosen status types and less normal defense, making it weaker than any particular current gunner armor. Changes to other armors would also make this seem significantly more plausible. I personally believe that this would be the best way of handling things.

But, provided that they don't double back or do some sort of redesign, it really wouldn't be fair for them to not generate similar armor sets for bombers and swordies to use. So yes, I fully expect them to create two entire clones of this armor for bombers and swordies in the future. I also expect this to cause problems with many of the existing armor sets, especially those that are already dubious choices like armor of the fallen. If they did double back on the new armors, I would be pleasantly surprised.

Bombers have the same amount of armour sets as swordsmen. There's Volcanic Demo, Mad Bomber, Bombastic, and Mercurial Demo. In fact, that's one more than the Wolver line but since Mad Bomber is obsolete, we can disregard it.
Just like swordsmen, they benefit from Chaos and Swiftstrike, although not as greatly when it comes to the latter. Then there's also the Black Kat sets, which all classes benefit from quite equally. I'd in fact say that bombers benefit the most from it due to how powerful MSI can be for them.