I went trough 3 screen replacements and 3 computer replacements... After all am on a Samsung screen now without yellow tint. Swapping all those computers and screens was a ****** annoying, OCD and time consuming process. Though in the end after it's all done, i'm very happy with my non-yellow samsung screen. At least now I know what i've got and don't have to worry about eventual IR.
The yellow tint won't change during time.. I'm a on the road a lot and have used it in varying circumstances (minus 6 celcius, shaky 16 hour touring bus drives, in clubs) and the screen is 100% the same as how I got it. My thoughts on the retina screen now is that it's very stable, but a drag to get one thats right in the first place. But once you've been trough that entire mess you enjoy it everyday.
Go for a good samsung.
Greets