To help keep the spoilers out of the Trailer topic, who do you think the new bots are in the TF4 trailer?

We have a green bot, a gun-face bot, a two-headed wing bot, and the one cutting the red car in half (who could be the gun-face bot)... plus a few other background bots, and something at the start that looks like a giant scorpion (to me).

What names should they have, or what names do you know for sure they are from other news or leaks?