Canon needs to update C100 line to make it up to date and portable at the same time. They have a new version of Digic procesors now, can add touch screen focus, better codecs than the old Avchd. C-Log2 is welcome, 10bits 4.2.2, All-I compression and many new features. Also the display and interface menu seems old even comparing to Canon Xa10 that i have. 4k it is not a must in this camera because we have C200. I want to upgrade to a new C100 or C200 in the future because i want to be able to grade the footage. If i don't want to buy the C200 as it what shoud i do? I may well go to the new Sony, Panasonic tech. Any news about a NAB 2018 release?