csd79 said:

Given the stories how they chopped off the original crawl from '77 prints, and then re-released them with the new crawl, I would say 'no'.

Sure

Although I think it could also have been a mixture :

Of recalling (already faded) 1977 35mm delux prints and chopping off the original opening and inserting the new Episode IV crawl and sending those back out into circulation for the 1981 re-release

And

Creating new 4th generation 35mm prints(delux) but without altering the colour of the (maybe already faded) original negative.

hence the reason why that 1981 trailer and the subsequent 1982 VHS release has that bleached out look.

Dunno just guessing!