Default 2k video recording possible?

Hiya does anyone know if 2K video is possible on the m8 as we all know the camera on the m8 cannot support 4k recording due there's not enoungh pixels on it as minium of 8.3mpx camera is required.

However for 2k recording there is theoretically enough pixels to support this as i believe only 3.2 mpx camera is required.

As if this is possible could HTC theoretically release a update to enable this resolution in the future?

Sent from my HTC One_M8 using xda app-developers app