YEP!!! In this month's OUR TIMES, it talked about how we (UAL) were going to put the 777's on the Asia routes...mainly to KIX, NRT, etc. because of the cost efficiency (and capacity) of the 777's. According to THE BRIDGE (onboard newsletter-SFOSW), UAL will be installing pilot bunks, and also F/A bunks. THe F/A bunks will be above doors 2 and 3 R/L, and I have no clue where the Pilot bunks will be. Word is, though the F/A bunks will only be installed on new a/c.
I am not sure if the IAD-DEN route is going to change. Passengers really appreciate flying on the 747's, but it will depend on the 777 aircraft. Next time you fly, see if the 777 is an IGW...ie XI aircraft. If it is the XC, it will continue to fly domestic routes. (maybe not IAD-DEN) A lot of 747's are now flying out of SFO to ORD IAD, etc, but they are all -400's and will primarily be used for trans-con, and mid-haul (ORD). The -200's have been assigned mainly to HNL instead of the -100YZ, which are being rapidly retired. Hope this helps!! Write if you have any more questions.