View Here : Canon 4k Dslr
Canon DSLRs are mostly marketed as great still cameras that take good video, and not the other way around. I think they were holding off on that model while others were jumping on the 4K bandwagon. They knew that the market for their cameras as photo-first cameras was way broader than the video-first market.
There are plenty of camcorders that shoot 4K if that is important to you. If you want a full frame sensor for that sexy bokeh then you should know that most DSLR's or mirrorless still cameras that do 4K either have smaller sensors or use only a part of the sensor when shooting 4K.