We've seen a lot of rumors and far-out theories on when we should expect to see the Nexus 5 and Android 4.4, but nothing proves that we're close as much as an "accidental" listing of the device on Google Play. The new Nexus 5 appeared briefly on Google Play today, and the Nexus 4 even disappeared from the site, but the real news is the price tag for the Nexus 5...
Source: http://www.phonearena.com/news/Nexus-5-briefly-appears-in-Google-Play-for-349_id48409
Source: http://www.phonearena.com/news/Nexus-5-briefly-appears-in-Google-Play-for-349_id48409