I don,t know if there is still hope for ideas for crysis 3 to be taken into consideration.
So, to start off can someone please tell me if there is a point in putting ideas here...I know I am a little late.

You can try. It may be taken into consideration for Crytek. They always have room for a Maximum edition or a Crysis Wars multiplayer expansion for Crysis 3(if they ever going to make one).
Also let see what the people on the forum may think of.

DICE on the other hand is ahead of Crytek with their Vehicle Kill and Close Quarters, so is CoD when it comes to DLC.
Crytek there is no need to copy BF3 or CoD. Then again Crysis 3 is to compete with 2013 games. So I guess it would be BF BC3(If that is being made) and CoD Black Ops 2 and many other multiplayer games. Should take into consideration of what made Crysis 1 better than 2 by a lot. Multiplayer and Singleplayer.