Speculations suggest that China-based HTC will be the sole developer of the two Nexus 2016 flagships. According to Phone Arena, HTC has already signed an exclusive three-year partnership deal with Google. Although there hasn't been an official announcement regarding the new Nexus lineup for 2016, HTC is reportedly going to capitalize on the success of the current Nexus flagships and follow up the Nexus 5X and 6P with 5-inch and 5.5-inch phones for a 2016 release.
As for specifications, top tier internals are already expected to be found on the Nexus 2016 flagships. According to Know Your Mobile, Google and HTC will reportedly integrate a 3D Touch feature into the new flagships. While the feature remains unconfirmed, a 3D Touch display for the new Nexus phones is highly plausible, given that other competitors, such as Xiaomi and Oppo, will reportedly integrate the feature on their flagships for this year. On paper, these specifications sound amazing with hopes that both companies deliver and materialize the phone for the public to see and try out. This may also be a clear opportunity for both companies to grow and capitalize the market since global competitor like Apple may have fumbled the ball with the release of the iPhone SE.
The new Nexus flagships are reportedly going to come out with a full version of Android N straight out of their boxes. This is a plausible scenario, since Google has already come out with a developer preview of the upcoming Android version. With all the bugs and issues dealt with, a full version of Android N will reportedly launch at Google's I/O Conference in May.
Since the full-version release of Android N is set for May, the new Nexus Phones may also appear at Google's annual event. However, global release dates will more than likely happen in the latter part of the year.
For more information, stay tuned.