Out of curiosity, why "interesting timing"?
George is of an age where he's going to be starting his big school soon, and the tabloids have been printing articles claiming that George is attending Marlborough/Eton/Grange Hill/school on the moon, all worded in the most goady way possible, pretty much every single week for a year, and they all contradict themselves all the time.
None of these articles are real. And there's nothing to say that he even will be attending Marlborough, just tabloid nonsense. Kate visiting doesn't prove he'll be going there, it's just tabloid fodder. They're probably visiting all the schools under consideration.