This X-Force Concept Art Points to a Movie Featuring Cable, Domino, Warpath, and Cannonball

ComicBook.com recently got their hands on this concept art for the upcoming X-Force X-Men spinoff film. The characters shown are supposedly the people featured in the film, who appear to be:

Cable, the son of Cyclops who possesses telekinetic and telepathic abilities. 

Domino, who manipulates probability and kicks major ass with her marksman skills.

Warpath, a flying, regenerating, guy with super strength, speed, and stamina.

Cannonball, that flying, jet-propulsion guy in the background.

The last member of the team, the gal wearing a hooded vest on the far left could be X-23, the female clone of Wolverine, or Hope Summers, who can mimic powers. Or she could be someone else entirely; any guesses?