We dont need new guns? Highly doubt it, iEra is meant to be a port from the PC version of Era, and that thing is full of different kind of wespons, also, they wont leave a online game with just 3 different weapons, because its simply stupid and there wont be much profit from the game.
We dont need a casino? Doubt it too, as far as I know theres also one on PC version (probably I am wrong), but we also need different ways to make money.
We dont need parties? They are meant to keep the users chilling around and playing it, making the game more fun, so yea, we actually need that too.

Since the first day.