Qt Releases, Revisions and Snapshots
Qt 5.4 Beta is still on track for release when possible at some point next week.
Snapshots can be found in http://download.qt-project.org/snapshots/qt/5.4/5.4.0-beta/
Recent revisions are added constantly, so just look in the most recent directories for your OS installer and go from there.
Qt Developer Days 2014
Qt Developer Days is underway in Berlin as of today and runs through October 8.
There is still time to register and join us in San Francisco this November!