• Firestar
• Javelin
• Proxima
• Roadmaster
• Velocity
Mr. Milne also provided a writeup containing even more details and tidbits about the fembots, which you can read below:
So here are some of the characters I’ve been working on lately which have shown up on the cover to MTMTE 41Yes, They are all female transformers and out of these designs 3 of them I also choose the names for.
It was fun to help create these characters. I know I’ve wanted more female characters in transformers for a while now. I’ve always placed one or more in the background of various TF projects I’ve worked on. Now we have the opportunity to have more of them and I’m very happy about that.
When the story came up for having new female characters I knew that I would like to have some of the characters that haven’t been used yet. I know I really wanted Firestar and James was able to get her for MTMTE. Then we were talking and he asked me to come up with a crew of new characters, both male and female and I was pretty excited about that. He didn’t have any names in mind at the time, so I wrote down a bunch of names and looked up on the wiki and tfu.info if they had been used. A lot of them hadn’t to my surprise so I showed them to James and he liked them. I then came up with a head sketch of them, and mentioned which ones were female and which ones were male, and he liked them. then I set out to design them.
These are the design I came up with. I wanted there to be a lot of different looking bots. First I started with Firestar. She is the more traditional look for a female TF, but where her main difference is her height. She is a very tall bot. She towers over most of the others. Not as tall as Megatron or Ultra Magnus, but she’s taller then Rodimus and most of the other Lost Light crew. I also had the idea to give her fire hair since in alt mode her head is the where the exhaust of the car. It also help add a little more emotion to the character since I can have the fire doing different things when she’s feeling different emotions. I thought it was different and something interesting to play with. With her torso design I decided to give her the same style of split canopy that Nautica has since it solved a design issue I was having at the time. Also I like the idea of some of the characters sharing similar design features
Next is Javelin. She was fin to draw since I wanted something very different looking. I enjoy the look of the head where is a single eye. i thought can we have a character with a single eye and not be a victim of empurata? why not?.
Next we have Proxima. When I described her to James I said she would be the equal of better of Perceptor. She would be a extreme multitasker. With her e4 head design she has main visor style eye, but 3 other eyes where 2 can move around her head.
Roadmaster was fun to design. I wanted a big characters that looked like she would bend and break you if you looked at her the wrong way. She is the biggest of the characters I’ve designed so far, matching Ultra Magnus in height (well to his head, not shoulders) When I was working on this character I thought an interesting variant would be to make a strika out of her, but then I would want strika to be a bit bigger then her. But the idea is in the back of my mind so maybe I’ll work something out of it?|
Last character who isn’t on the cover, but I saw that she was partially shown on a post on the credit’s page is Velocity. Another fun design where I got to play around with features that I don’t normally see with many TF’s
Thats it for now
Enjoy
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I don't think these are the combiner fembots... I feel like that's something Hasbro plans on unveiling at SDCC. Which means MOAR fembots!!! Yes 
