You may not. But large enterprises that pay billions a year for networking gear, who can save a billion by buying whitebox, and still get that Cisco feel that they have spent years training and acquiring expertise will and already are. It may not be IOS. But Cisco will come out with something that feels and operates like IOS that runs on x86. Juniper has already ported it's JUNOS to run on x86.

Between whitebox and SDN. These companies won't be selling hardware for the 1-200% markup the have enjoyed all these years.