OnePlus has started developing the next generation OnePlus Two device which will include a costume Android ROM. OnePlus One is coming with its own custom ROM on the next gen device. As per the CEO, OnePlus has established the ROM development team.
Currently, OnePlus offers OnePlus One device on which CyanogenMod comes as default Operating system. Well, couple of months ago, OnePlus has launched stock Android 4.4.4 ROM available for the OnePlus One.
The new OnePlus Two will come with OS only in China. OS we can expect CyanogenMod again on the new device also but hope it will be available for the device like that of Stock Android 4.4.4 ROM.
The OnePlus Two is expected to launch in Q2-Q3 2015.