The big questions here is definitely how.
I mean, the way i see Skarlet, she doesn't have bigger interest for power unless she has a reason for it (ressurect Shao Kahn?), Mileena didn't waste anytime trying to be empress, it seems like Ermac has achieved an Elightment status, she feels more like the character who doesn't care, this is why it gets so intriguing.
From issue 1 to now, we know from Shawn that Baraka and Rain, Reiko are sided with Mileena, but from all Shao Kahn's forces Skarlet is the only one who doesn't seem to be on that Party, Ermac too seems to be the lone wolf, maybe they sided for a plan.
Really curious to see what Shawn will do we her, and finally lets see if she can actually speaks, or if she just isn't much fondle of words.
Can't wait, my guess is that maybe she will appear on the issue 9 or 10 where Kano will be talking about what happened when he got that Kamidogu blade, it would make sense with the page i shared last week, where Kano is all boned with Kunais and Shurikens.