We’ve discussed some of the difficulties with integrating professional gear into various soft conferencing systems before. While there are some great solutions such as the Wirecast virtual camera driver, the Vaddio AV Bridge, Epiphan, and of course scan converters, all have their limitations since they are essentially adapting the signal. Skype apparently has recognized the need for industrial signals and encoding with a recently announced product called SkypeTX. The system will include HD-SDI connections by beyond that little has been announced. This will be an exciting product when it hits the market!
https://media.skype.com/skype-tx/