Given that's what they did for TEA, I imagine they'll simply pick random weapons for Dancer and Gunbreaker. Although, my actual guess is they'll use the i430 AF weapons for the next Ultimate.
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They're busy working on real stuff, like fishing.
I don't know why I still level a fisher in every expack to be honest. I level it up, used it for a couple week after max (I guess out of a guilty conscience) and never touch it again for the next two years. While the shared gears are upgraded because I use BOT/MIN regularly, I don't think I ever get a fishing rod beyond the first blue one.
At lest you can still get something out of it when it was the only way to get some unique sands, but with the new script system even that's no longer the case. And then the fishes using in food recipes are also script bound ...