I’m all for better sources, but every release brings with it more alterations, even if unintentional (in this case, the film scans would predate the Blu-ray changes, so they’d likely re-do those from scratch, and they’re unlikely to be 100% identical). If we wait for the UHDs, then we should also wait for analysis of those new alterations, otherwise basing something on them could be a step backward. Also, the step-down in fine detail from DeEd to 4Kxx is already pretty obvious, even at 720p… if DeEd were based on something with more fine detail than the current Blus, the seams between footage from the new source and 4Kxx-based footage would be even more apparent. Not an insurmountable problem (blur the Blu source, sharpen the 4Kxx source, fake grain tricks, etc), but something to consider.