(1) In a poll on MMO-C, people would pay for the service. Discounting those who want to play for free, it's a tie between those who
will pay and those who will
not pay or not play. SRC:
http://www.mmo-champion.com/threads/...Vanilla-server
(2) Players time will undoubtedly be a factor. But many of the (futuristic) Legacy sub's are those who were not going to subscribe anyways. Confusion is fixed by identifying each server as Legacy, as appropriate, with a tool tip, during server selection. Blizzard eating their own words is a problem though. They likely already realize it now, but would be hesitant to admit their "error".
(3) Fans were not petitioning for Warcraft Adventures, Starcraft Ghost, or Titan. There was interest, but not on the level Blizzard is seeing with regard to Legacy.
ps - the other paragraph left untouched. A WoW movie was made already to fan request. Whether it is acceptable requires time, but doesn't look great currently, IMO.