I doubt any home video version has the original colour timing because that would require an expensive scanning of the 35mm and 70mm film sources. I think it will be the same version for the film.
For the 1.44:1 sequences though, they are from the actual IMAX source, so those scenes should be close to the print.

Regarding the original timing, I think they will release a 10th, 15th or 20th anniversary version when they may re-scan the film elements. Also, it’s ultimately what Nolan wants. if he is happy with the TDK Blu-ray, then there will be no re-scans done.