If everyone on this board is coming in at $15K, I'll take the over.
The book is an $850 CGC 9.8 modern that is not a variant, condition rarity or super low print run book. That's extremely tough to pull off. The character is one of the most popular of the modern era, already well represented in a killer movie that I'm sure will spin her off into the rest of the X-universe. This is her true first appearance.
The art is pencil-only, BUT there are no missing elements or details other than blurry Photoshop filters. The concept pieces would probably also allow the buyer to recoup a couple Gs if they were so inclined. Quality of the art also matters a bit less when it's a memorable first appearance (see Trimpe, Herb). Also, I had to google the NYX 4 cover - this is the one I remember.
BTW, $60K is nuts. I'll go $25K.