You will never have more than your captured originally.
YES, capturing via the HDSDI will not "upgrade" previously captured footage into a 10bit ProRes container, it will have been converted into the best possible via this hardware conversion/ decompression as the HDSDI stream is an uncompressed output, but recording errors and compression artifacts may still cause issues.
NOTE: A live output signal from the camera has not been processed and would be a higher quality recording. If you want the highest quality recording with the KiPro Mini, record from the camera live while shooting, not afterwards.
gary adcock
Studio37
Post and Production Workflow Consultant
Production and Post Stereographer
Chicago, IL
http://blogs.creativecow.net/24640