Right - A kid sits down and does his solve. He then goes up to Feliks and says "Practice this scramble, you can get a WR from this if you pracitce". Feliks studies the cube and realises that the kid isn't lying. He practices the scramble over and over till he knows it by heart. During the solve he performs F2L, then OLL without pause and, say, gets a PLL skip. 3.98 seconds.
Would you allow that solve? There are a few reasons why I don't think that this should be allowed (despite it not being Rami's fault):
1) Nerves. You see a good cross you begin sweating like hell, especially if you're fast enough to possibly get a WR.
2) We're talking about a World Record here. Something of international importance. Not just a competition podium - Something that could make the news and many non-cubers will see it for many years, even if it is beaten.
3) We're all cubers here. We know that to an extent we can plan ahead for our solves. In the Feliks example above, it would almost come naturally and is something we can't avoid. It isn't Rami's fault for figuring out the solution in his head, it's the kid who showed him the cube for giving him a chance to.
As unfortunate as it is I just think there is no way that this will be accepted as an official solve. I hate to be the one to say this but at the end of the day, Rami's word is all the proof we have that he didn't either go and practice the solve or write a solution to it down on a sheet of paper.
If Rami were to be allowed to keep this (and the average WR) then he would prove that all you have to do is sneak the scramble of a solve from someone, practice it, perform it and then tell the delegate that you were shown the cube before and you could just as easily fraud yourself a World Record.