Maybe theyos is cooking something, just saw this comment regarding the ads:
Note that after this round, there will be a period of about 30 days where ads will not be sold.
To be clear: winners of this round will not have their ads run for 30 days. They'll run for the usual time. Ads just won't be sold at all for a ~30-day period; in other words, this is the last auction for a while where ads will be sold.
Looks like that there will be no ads for at least a month. What will be then? I guess it will be nice surprise.