There are some truly remarkable upgrade options for backers of the fps1000 project on Kickstarter, including 4K Super 35mm and also an ultra-sensitive Micro Four Thirds CMOS.
The original fps1000 Platinum with Micro Four Thirds mount which I backed was £899 and is now due to ship next month!
The higher end 4K and ultra-sensitivity options are an extra £1500 for backers and will likely ship Q4 2015.