During the go/no-go meeting for the Fedora 18 Beta, it was determined to delay the beta release by yet another week. This latest delay is attributed to open blocker bugs still and the upgrade tool for being able to upgrade to the Fedora 18 Beta is still incomplete. Among the active blocker bugs are not showing BIOS RAID on the hard drive screen, other Anaconda installer issues, the Kickstart package section not working, a problem with making a Btrfs file-system, and fedup-dracut builds don't exist in F18. There's also a few other proposed blockers that are also open.
The new plan is to try to ship the Fedora 18 Beta on the 13th of November. While the beta is late, they hope to still ship Fedora 18 final on 11 December. The final release date didn't slip since they're not trying to collide the Fedora 18 release with Christmas. If the beta is delayed yet once more, however, this problem could happen or the F18 release could even slip into January of 2013. Originally, Fedora 18 was supposed to be released next week -- on the 6th of November.
When Fedora 18 finally ships, which is codenamed the Spherical Cow, at least it will pack some interesting features.
The Fedora 18 Beta delay was announced on the devel list this afternoon. The latest F18 release schedule can be found from the Fedora Project Wiki.