Apple Insider chews the fat on the possible extension of iOS (in some form or another) to AirPort and other Apple peripherals. The move would make sense: a unified code base and the ability to sell apps for yet more platforms are both desirable. It would also allow deeper integration between the Mac and any wireless accessories for which the router serves as an intermediate.
Will we hear about this at WWDC? No way to be sure, but I would guess this kind of thing would accompany a hardware announcement, not a software one, so my guess is no for now. Maybe when they show the new MacBook Air we’ve been hearing about.