Yeah, they use the same solicit quote for #57 so its referring to the arc " “VALLEY FORGE, VALLEY FORGE,” rather than this particular issue.
The run actually goes all the way to issue 60 according to Tim Bradstreet http://timbradstreet.typepad.com/the...g-the-pun.html
I really love the Bradstreet covers on this Ennis run, he's really on a par with Alex Ross's photorealistic painting style, maybe better.
In June they're shipping another one of those annual/one-shot issues for Punisher Max by another creative team. So I expect that will be a skip month for the main book.
Marvel's solicitation announcing that #57 was the Ennis' final issue was a quite confusing. But, thinking about it, they couldn't make the story just 3 issues long, how would they expand that into a trade?