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.
They will certainly do new scans of at least Begins and TDK at some point in the next couple years when they inevitably put out the trilogy on 4k ultra hd blu-ray. It’s possible that Rises has been ready to go with a 4k variable aspect ratio master since it was released. The blu-ray screenshots for that one are very detailed and it doesn’t look like they simply used the Imax DMR master like they did for TDK.
I remember seeing an infographic that basically laid out the very complicated production pipeline for Rises. Nolan is probably the last big budget filmmaker who still insists on finishing his films photochemically and not as a DI, adding yet another step to the process.