You may have seen an announcement from LC about the "Bibliographic Framework Initiative." As most titles go, this one isn't necessarily as straightforward as it could be, but the initiative itself will likely be a Big Deal.
As highlighted in a recent Library Journal article, this initiative may signal the beginning of a move away from the MARC format. (Did you just feel the earth shake?)
Take the time to read the LJ article, at least. If you want to follow the progress of the Initiative, check in on their website at:
I'm sure we'll be communicating more about this in the future. Any changes will be a while in coming, and gradual when they do, but they will be significant.
But, hey, we're used to change, aren't we?