Weapons made by different Manufacturer

[ChaosAngel92]

So as we know, on AoI Manufacturers are starting to produce weapons that were exclusive to other manufacturers. Tenora is producing "A" Claws i think and those sexy guns, GRM "A" daggers as well.
But also there are some other weapons like the shotgun, that are also being produced by Yohmei. Now according to this nice site http://pwv.sakura.ne.jp/ there are C and B shotguns. But no further than that. Same thing happen with GRM rods.

My question is the following. In a future, there will be A rank Yohmei shotguns? Or ill have to wait to another expansion?

[Broodstar1337]

I hope it doesn't expand too much further as far as what shops sell what weapons. Or else there'd be no point to have anything besides the weapons with all the attack power...