I've been thinking about this a lot lately, wondering what would be better than what we have right now. Especially when it comes to the high end professional cameras like the IDsIV. With the economy world wide being questionable, to put another $8,000 camera on the market you'd want to question how it needs to meet the needs of the future. Since it's been predicted by some that 90% of all internet photography within three years will be video, and that printed publications are slowly dying out, that leaves a lot to focus on with the internet being center focus and if the new high end cameras need to stay familiar in ergonomics or become something between video design and still design and how should the sensors and processors be designed to accomodate. And another quesiton I've been asking is, do sensors need to be redesigned for video, is there something that would improve them for this task.
I personally do not think stills are on their way out, but there is a mania for video, the problems lie more with the skills of the video photographers/directors/producers in the areas where the content seems to suffer by the unskilled methods/sound etc. that will have to be learned. I come out of the film industry after over 30 years experience and there's a lot more different things to know creatively than with stills. Not that it can't be learned but you have to produce something really good to get people to watch a video now that we have access to so much of it instantly on the net.
Personally I only interested in still photography at this point in my life, partially because I can to it all myself, all of the time. Granted you can shoot a lot of stuff by yourself with video too but it's different. I want to tell my stories in a single photograph.