I would say so seeing as it's a long way from release and we've already gotten this much info. On top of that, they're still adding things into the gameplay...
But are they adding onto the combat of the weaponry? Are they adding anything to Rebellion, Eryx, Arbiter or Osiris? The real question isn't what I can do with weapons in general but what I can do with just one? That's why I said that Osiris seems to be the best weapon out of the four revealed because you can do more with that weapon than you could with the others.