"Sony has said it will have 15 lenses ready for the NEX system by the end of 2013. It made the annoucement of an expanded E-mount roadmap at the start of the CP+ trade show in Yokohama, Japan. The roadmap includes a variety of zooms and prime lenses, including a high-end standard zoom with Sony's premium 'G' branding. There will also be a pancake prime and a mid-telephoto prime lens some time during 2013.
The roadmap is understandably hazy about exactly when each lens will arrive but with the huge biennial Photokina trade show coming later in 2012, it seems reasonable to assume some will arrive then."