Absolutely nothing official, but I know how Scott (+his team) works. And he works very fast (14 hours a day). The post production will last 6-7 months.
The first month he made a rough cut. It must be 3 hours.
Then it will easily cut 25 minutes.
This second editing will be refined with addition of music (sometimes temporary) work sound mixing, VFX (not completed) ...
After that they can do test screenings, then they will work again mounting. May be reshoot some scenes.
And they will begin the final cut.
This is the same method of work for Prometheus, Counselor, Exodus, The Martian. And he will soon begin pre-production for his next film.