I was thinking overnight on the UDP poll and its consecuences. Two more points:
First, is that since there are so few newly registered voters, the profile of registered voters, in terms of their general political orientation stays pretty much the same, that is, pro-Concertación. The only thing that changes is that they are now four years older, which the UDP clearly shows, favours Frei.
However, should Frei actually pull this off in January, renovation is an absolute must. Not only is it politically advisable in theory, but the major change between this election and the next one is that the new electoral law will come into effect, which automatically registers voters while making voting volutary. All those young voters who up to now have been to lazy to register, will at least have the option. Had this happened this year, Frei would have been dead in the water.