BOOBS: a sure way to increase traffic on your thread [
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Anyway, quoting the article Clarence linked
Female Rogue: Sneaky leather vest for stealing stuff
Well, this is exactly what I see in the picture. No sexy lingerie.
The breasts are not ridiculously exaggerated. The picture is not perfectly vertical but leaning 30 degrees clockwise, and so is the rogue. If you look at any of the covers Tiziano has done for us, you will notice that this is a characteristic of his artwork: he never draws normal, vertical scenes. This makes her look as if she was wearing a super-pushup-extra-wonderbra, but what you are seeing is a meager C size. She is just pictured at the best possible angle, like in some bathroom selfies.
Anyway, the image is a placeholder, as Sverre guessed. I had one with a dwarf with axe (much more stereotypical, but Swedish dwarfs are less vocal than Swedish women on forums, so it would have caused less outrage) but the author could not give me copyright.
The most important thing, however is that Revolution will be the first roleplaying game with rules for chainmail bikinis! Yes, you will be able to dress your adventuring lady in a fantastic sexy outfit that has a realistically calculated ability to stop some blows. Just be prepared to roll up lots of sexy female adventurers.