Trying to cover the 747-8 right now is sort of like trying to cover decaying uranium.
Boeing said last month that the slow down in manufacturing is temporary, and that in 2001 they'll increase the rate once again. But this outlook depends on their slightly biased predictions about cargo demand, which most experts have some skepticism over. Meanwhile they're laying off a large group of people in the short term.
Boeing has been shipping 747-8 engines from various sad frames in the desert to install on KPAE airframes due for delivery over the next months, namely Korean Airlines frames. They still have five scheduled to deliver this year. Could this be a sign of engine production issues? Or GE lethargy? This, by the way, doesn't bode well for the short term future of said desert airframes.
This might put a shortage and a priceraise in the used marked where there is limited well maintained 747's for sale.