even now in 2012 with the TNG-R project retransfering the 35mm original camera negative to HD they are not planning for 4k.
TrekCore: When the film is played back through and captured digitally, what resolution is it captured at? One of the most popular questions we’ve had is ‘are you future-proofing for 4K resolution’?
Craig Weiss: No, at this point we are working in HD. If, in the future, there is a request to go back to 4K or something – at that time we’ll address it. We have – the most important thing – the time code of how the show was mastered, which has been the bulk of trying to figure this out. So we can go back and remaster the film in 4K. Due to just time and the schedule, there would be no way for us to be able to manage that kind of data for an HD release at this point. And nobody really knows what the specs for 4K are going to be, or for 4K televisions. So we decided we didn’t want to scan with today’s technology and then a year from now the specs might be different so we’d have to re-do it, so we decided to just stay within the specs for this Blu-Ray project.
At this point a 4k pipeline is only for major feature films. While I thought they would scan at 4k and archive that they aren't for cost and part of that cost is the media. there are no 4k tapes. only LTO-5 format data tapes would be removable but look at 11 years ago. The #1 rated TV drama CSI was mastered at 1080/60i.
Current film scanners can do
4k resolution but figure in 15 years film scanners will be doing 8k for restorations of major Hollywood films and the 35mm film scanning technology will be fully matured to 8k and somewhat better dynamic range and quality.
CBS Digital is preserving the 35mm film in case of a future project returning to scan at 4k or higher.
The [35mm film] boxes are pretty well intact. There is no real chemical [damage] or seepage – we’re not seeing much of that. The [35mm film] cans are a little bit crushed, the boxes are falling apart. We’re doing a level of triage to the elements where we’re restoring the packaging so that future generations – when they have to go back to the film – it’s in a better condition than we received it in.
from the Trekcore article
I think that by the time the next Trek TV series is in production the TNG-R project will be complete and the cost to shoot in 4k will be worth preserving it for the future.