This is just a tad confusing...
Last week, in DC Comics' solicitations for August, Worlds' Finest #26 was erroneously listed as the "Final Issue" of the series.
Today, over at Diamonds' Previews website, under the link for Product Changes:
http://www.previewsworld.com/Home/1/1/71/958
We find this little blurb under the DC Entertainment heading:
Which is odd, for two reasons:• Worlds’ Finest #26 (JUN140190, $2.99) is not the final issue of the series. This issue’s solicitation erroneously notes it as such. The series’ actual final issue, #27, will be solicited in the July PREVIEWS.
One, there was a recent interview with Paul Levitz that indicated he'd be continuing to write the series, but instead of focusing on Power Girl and the Huntress, it would focus on the Earth-2 Superman and Batman in the time BEFORE the arrival of Darkseid.
Two, the July PREVIEWS would be for SEPTEMBER, when all the one-shot "Future's End" books will be coming out. There is a Future's End Worlds' Finest #1, written by Levitz, but it isn't listed as issue #27. I suspect this is a mistake, and they actually do mean August Previews (meaning an October release date), but I could be wrong.
It's possible the adventures of Earth-2 Superman and Batman will be in a new volume of World's Finest (note the apostrophe placement), starting with #1. Or perhaps the title will change (the apostrophe will move), and the numbering will continue, with #28, etc., so Worlds' Finest #27 is really the last issue of plural WORLDS' Finest.
Or it could be Levitz' stories of the E2 Superman and Batman will just last one issue.
Or perhaps DC has decided to count all the "Future's End" issues as regularly numbered issues of the series. If that's the case, none of the series "cancelled" in August would have final issues that month, save All-Star Western, since they all have Future's End issues.
For now, just count me confused.