I have been puzzling over the wording, as to whether it means -
a) This is an exact reproduction of the layout and colouring from the Eagle Comics run, or
b) We've used the original 2000AD layout but coloured it in the same way and with the same palette used on the Eagle Comics run, or
c) The colouring is new but they're pointing out it's not the first time the story has been coloured in. "Hey, this one is in colour! You remember colour, don't you? We've done it before, like that time we published this story in Eagle Comics."
Like Leigh hints at, I was also wondering if the art had been bodged to fit the Eagle format, as that may be an indicator to which one above. Either (a) straight reprint [if bodged in a good way, and/or by someone noteworthy] or (c) original unbodged version but now coloured in [if the bodged version is considered an abomination].
And again, like IP I was thinking about Halo Jones too but my thinking was this may be to follow up on any interest generated in Ian Gibson's work by the Halo Jones reprint in The Best of 2000AD.
I'm still of the view that ultimately everything will go down the same road as Halo Jones and end up being coloured in. That won't make the B&W versions disappear, but I think it's increasingly likely if Rebellion want to continue to sell reprints to new audiences, and to find ways of re-selling them to those of us who have already bought them.