Haven't read anything official regarding this, but I'm 99% sure there will be claymores/rifles/star globes obtainable through current tomestones. It would be odd to bother making level 70 weapons drop from Ifrit/Titan/Garuda Hard Mode, but not allow us to purchase ilvl l120 ones through tomestones.

(Also, they added the Air Knives to the list of weapons obtainable from the weekly Primal Quest when Ninja was released, although the item level was already kinda irrelevant, so...)