March 20th: Panasonic don't have a date for a firmware release for the Panasonic Lumix S1 Pro for it to be able to shoot 10 bit 4:2:2, and they have no idea if it will even be worked on, never mind when it will be released. The agent I had an online chat to tried their very best to answer my questions but was unsuccessful at finding out because Panasonic don't seem to be providing any answers.
I quote:“When the engineers from Japan will decide to integrate a new update, the information will arrive to us one or two weeks prior to the release."
So, I asked if that meant someone must be working on it or have a vague idea of when it might be released.
He goes on to say:"...we don't know if a new firmware for 10 bit will be available, and if it will be, we cannot find out."
So, if you're thinking of getting this camera for 10 bit 4:2:2 recording as it's been touted to be able to do, don't!