It was claimed that LG’s global communications director, Ken Hong, has said that he hasn’t hear anything about the Nexus 6 so far. Given that the Nexus flagship will always be announced around September every year, it wouldn’t be possible that a global communications director didn’t even knew about its existence till now.
There are also rumors which says that Google will be ceasing their Nexus program and focus on their upcoming Android Silver handsets instead. So far there isn’t much news about the Android Silver smartphones but we know it’ll definitely be unveiled by the end of this year.