You can tell from the previews that Rupert is going to help them (he looks to have caught them some fish) but I doubt that he will give them any info on the other tribe.
This could turn out to be a good thing for Rupert - if he has friends in the other camp when they merge, he'll be much better off
Also, does anyone think they only gave the extra prize (taking one member of the other tribe) because they knew Drake was gonna throw the challenge?