Does anyone know if the Panasonic GH5 will be compatible with the Interface Unit that was released with the GH4?

We're considering getting the GH5 but would first like to make sure it's compatible with this interface unit that we bought with the GH4. If not, we might just steer towards the new Canon 5D Mark IV or the Sony A7sii via /r/videoproduction https://www.reddit.com/r/videoproduction/comments/66sajq/does_anyone_know_if_the_panasonic_gh5_will_be/?utm_source=ifttt