A lot of new client software would have to be deployed before this fairytale (which I fully endorse) were to come true. However Verisign don't control the client, and so I believe it's actually possible this could happen.
Their influence (or anybody else's) over what actually happens to the root is dubious. The root operators take its reliability very seriously - it has inadvertently become one of the most vital utilities in the entire world, and so they've been going very slowly, but they are moving. Check out root server L, which is current emitting bogus DNSSEC results. They intend for this behaviour to gradually spread to the other letters (many of which consist of several physically distributed servers) to prove that the infrastructure can cope with the significantly increased load from DNSSEC. Then one day (this summer according to current schedules) the results won't be bogus any more. Tada!
Conspiracy theorists will, of course, continue to believe that the root is controlled by secret Reptilian overlords who seek to suppress the truth about the assassination of JFK or whatever. But for the majority of reasonable people the root will be secure and the question will be - which TLDs and domains do you trust? The ccTLD registries in particular will definitely vary in how trustworthy they are from a general competence standpoint and as a matter of independence from the sovereign governments via which their rights are delegated.