27" is already considered to be the lower end of an acceptable size to me. 30" or even 32" would be fantastic, that hits exactly the sweet spot for a display on the desk. Not too big to be used for work, too, but big enough for the real "cinematic" feeling.
Of course, 27" and bigger displays need bigger resolutions - 2560x1440 could be considered as the sweet spot between pixel density and performance requirements for the GPU. 4K doesn't make sense at the moment for most people as it requires super-expensive multi-GPU-setups, especially with a target framerate of constantly 100+ fps.
So, Asus, Eizo, Benq etc., please give us 30"-32" monitors with VA-panel, G-Sync und ULMB with a 2560x1440 resolution!

