So i’ve wanted to redesign Mimi cuz some people say that she doesn’t fit to TF2′s 60s style due to having anime like elements with her design. I also made a blueprint for her (Definitely approved by Mann Co.)
With all of these videos with the Engineer Robot Girls making a family and killing various Spies it's inevitable we will get a sapper robot girl model: The spy makes or commissions a robot sapper for revenge and now he has an ally to fight them.
(Not mine, author unknown from Reddit, saved it years ago)
Eventually all the mercs will want their own personal robot and TF2 will turn into something like Bakugan or Gurren Lagann.