Touch screen is almost a must for video.
IBIS adds quite a lot to size and weight. A full-frame body in rangefinder form with IBIS would be more appropriate as the feature can be used more effectively with legacy and converted lenses.
That IBIS adds quite a lot to size and weight seems to be the conventional wisdom. But I don't really believe that is true. Olympus has great IBIS and it doesn't add much size and weight to their cameras. It might be slightly bigger and heavier to include IBIS and Sony could have done that if the marketing gurus had approved.
I love my nex 7 but, as I have aged, my hands have a slight tremor so IBIS would be of great benefit to me personally. I would love to shoot my Sony/Zeiss 24mm f1.8 with IBIS. However, my nex 7 soldiers on...