Wouldn't extend the ban on seedings to the tournament proper, although it would be a laugh.
In fact, get rid of seedings and the groupings altogether?
What if our next World Cup qualifying group was...
England
North Korea
Paraguay
Kenya
Italy
Cayman Islands
You seem to have forgotten that FIFA split the world up into areas ! Regardless, it would be fun for the qualifiers to be no seeds and no area groupings.