LeTV Mobile will hold a "1019LeNext" Eco release conference in USA on Oct 19. Among the new products which will be released on this conference, there are lots of rumors about the new LeTV Super phone, which is expected to be named as LeTV Le 3 mobile.

According to the latest news that the new LeTV mobile is certain to use the dual rear camera design, while is not named as LeTV Le 3, instead of LeTV Dual 3 mobile.
LeTV Dual 3
If the LeTV Le3 mobile is just the LeTV Le Dual 3 smartphone, the LeTV LeEco Dual 3 phone will use the special dual rear camera design, and will first carry the Helio X27 Deca Core processor, which also strengthen the camera function, and supports 4 times optical zoom. Gossip said it was defined as "Artificial Intelligence" (AI mobile phone) by LeTV. 

Source from: http://www.letvmobileshop.com/news/letv-dual-3-phone-release-soon/