It appears that Russ Denny, who apprenticed under Dave Moulton for eight years and built bikes with him under the FUSO brand, is reviving the FUSO name with a relaunch at NAHBS. Russ has been building bikes under his own name (and for other companies) since 1993 when Dave Moulton quit the framebuilding business.
I, for one, am excited to buy a new FUSO. I have one - a cyclocross bike from 1991 - and although it is a great bike, I would like to buy a modernized version (threadless stem, etc). Dave Moulton was a master, and while he won't be involved this time around, Russ is certainly a fine craftsman and I have every faith that he will carry on the FUSO tradition of excellence.