I'll try to pick things that we don't already know are in/out.
DO WANT -Less ammo for the rocket launcher (NO MORE SPAMMING) -...Wow...I just realized that everything I wanted changed from the first is already either confirmed or speculated. Awesome!
DO NOT WANT -placeholder. The biggest problem I had with the first was the insane amount of time it usually took for me to join a game (mostly because of the spawn glitch. It is the reason I stopped playing), but I heard that's fixed now. Yay!