This may sound stupid, but will the Nexus 6 just be announced or is there going to be a Google event we don't know about? Also, with the 6, do you think they're abandoning the 5 (or a newer version of it)?
If there was a newer version of the 5 we'd likely see some kind of leak, be it benchmarks or otherwise. All signs point to a Nexus 6/X phone and a Nexus 9 tablet.