There'll be no new ones made - CC aren't making Pandora PCBs any more. But I'd wager the reason the number dropped so rapidly is because LCDs were taken from them while there was a problem getting new working ones for the 1GHz units. The PCBs should still exist, and add an LCD and there should be some more units for sale in a while if anyone wants one.
This thread should really be moved to Ask ED Questions.