Comment 11 for bug 1448092

lcguo, the release schedule is available here: https://wiki.ubuntu.com/WilyWerewolf/ReleaseSchedule

Should there need to be a new version please file a new bug report, since we're in Feature Freeze, it will need to be approved by the release team, as per the documentation here: https://wiki.ubuntu.com/FreezeExceptionProcess

As for bugs (or a bugfix-only release), they don't need a freeze exception given they're just bugs :)