It looks like the OnePlus 2 is shaping up behind closed doors, something that should feature a 5.5-inch display, either 1080p or QHD (2560x1440). It should also feature Qualcomm's Snapdragon 805 processor, backed up by Adreno 420 graphics.
The OnePlus One handset featured a Snapdragon 801 processor, so it's a nice upgrade on its predecessor. Continuing with the internals, we should see the company plugging in a 16-megapixel rear-facing camera, 5-megapixel front-facing snapper, 32GB of on-board storage, and a 3300mAh battery. We should see it launch with Android 5.0 Lollipop, as most flagship handsets will next year.