I was wondering if pahimar or just someone could add in some of the EE2 items, such as Dark Matter, Red Matter, etc. A lot of people are working on EE3, so I figured someone would have the time to add it in.

The last FAQ answer mostly everything: http://www.minecraftforum.net/topic/1540010-equivalent-exchange-3-pre1h/

I also have some objections to your last sentence:
There are a lot of people working on EE3, but only pahimar gets to commit stuff to master. So he gets the final say, and nobody except pahimar can just decide to officially add RM, DM, etc.