At the live Diggnation that was just held in London as part of the “Future of Web Apps” Expo, Kevin Rose enlightened us with yet another juicy rumor. He claimed that the new and yet to be announced MacBooks will support Blu-Ray drives. Rose was spot on in his iPod/iTunes predictions for the recent “Let’s Rock!” Apple event, and we’ll find out on Tuesday if Rose can go 2 for 2. Rose, however, did qualify his prediction by saying that his source for the Blue-Ray rumor was not nearly as good as his source for the iPod nano and iTunes updates.

Rumors of Blu-Ray coming to the Mac stretch back to 2006, but especially picked up steam after HD-DVD was put to rest. With the MacBook line in desperate need of a refresh, this could very well be an interesting point of interest at next Tuesday’s media event.

Related: Blu-Ray licensing gets easier, will Apple get tempted?