My understanding has always been the new $100 was planned for
introduction in 2009, not 2008. I don't think the change in the
president has anything to do with its "delay." There's no official
word on the design of the new $100 other than it will use Crane's
Motion security thread which debuted on Sweden's 1,000-kronor note and
is now being used on Mexico's larger denominations, too.