I agree with what you would like for the new MBP. One note, the 2015 MBP does smoothly drive dual 4Ks plus the internal. That's the set up I have at work right

I agree with what you would like for the new MBP. One note, the 2015 MBP does smoothly drive dual 4Ks plus the internal. That's the set up I have at work right now. I just have the base model, and I'm not sure about the 2014 ones.