Nubia starts sending out invites for MWC 2017 event

Known ZTE Brand, Nubia has started sending out press invitations for its Mobile World Congress (MWC).
The invite quotes, “Whats’ NU” which clearly hints that Nubia might unveil a completely new smartphone.
Nubia took the MWC 2016 stage and unveiled nubia Prague S. Rumor has it that could could announce Prague S2 at MWC 2017.
It is too early to tell as the device has yet to appear in leaks and photos. Nubia has maintained secrecy till now, but we expect more rumors to fly by as MWC nears.
For those who are not aware, Mobile World Congress will be held in Barcelona from February 27th to March 2nd. Nubia will showcase its devices at 7A11, Hall 7, Fria Gran Barcelona Via.