Pathfinder has changed specialist wizards in such a way that they no longer have to forego schools completely. They can still prepare spells from their prohibited schools and all they lose by doing so are their specialist benefits for that particular day. In effect, these wizards can function both as specialists and as universalists. As such, I think the universalist wizard becomes redundant and likely unbalanced, as he gets 'universal' benefits whatever spells from whatever schools he has prepared for the day. There is an easy solution to this. Remove the universalist wizard. Sometimes less is more and this is exactly such a situation. Specialist wizards are more flavorful and if they can act as generalists by foregoing their specialization benefits for the day than there is nothing to lose from the removal of the universalist.
*Note: This comes from a regular player of wizards. In fact, non-specialized/universalist wizards are the most common character that I play, though I should mention that I am most frequently the DM.
*Note: This comes from a regular player of wizards. In fact, non-specialized/universalist wizards are the most common character that I play, though I should mention that I am most frequently the DM.