although the traxxas velineon system is a very fast setup its meant for smaller lighter trucks like the stampede, jato etc. putting it in a much heavier truck like the e-revo would probably make it overheat and eventually fail. even traxxas doesnt recommend putting the velinieon systerm in a revo or e-revo .

your much better off going with the mamba monster max esc and a good brushless motor like a neu or a feigao .

as far as waiting for the version 3 of the mmm id just buy the version 2 and then you can update to the new firmware found on the v3 anyways through your castle link program.