While I'll give Fox credit for being willing to go more comic accurate (Psylocke, Deadpool, Jubilee, Storm, and the new Colussus look like they were ripped right off of the page), and Munn looks awesome overall in that image (the swords, the psi-energy, the non-sexualized pose, etc), I wish that they hadn't used that costume. I've NEVER liked it, it's a poor design imo. And seeing her posed right next to Magneto and Apocalypse (who are both completely covered up except for their faces/heads) just makes the ridiculous double-standard when it comes to it's "fanservice" nature all the more obvious.
I'd very much prefer that DD not do that either. DD and The Punisher can be completely covered, but Elektra is fighting in a glorified butt-flap/thong. No thanks.