Sure it's possible.
It wasn't something that just "happened" last season. You don't see a lot of people talk about the fact that LSU and Bama were in the #1 and #2 position in week 13 last year. Even Miles has said recently the BCS is designed to put the two best teams together for the NC game and it did. We knew it was coming several weeks before the conference championship games were played.
Realize, the only reason OSU was 2nd in the computers was a win over a top 25 team in their CCG and then it wasn't enough. Those that cover the computers (despite Delany saying you can't tell how they'll come out) had already forecasted a win wouldn't put OSU over Bama.
I don't think it will happen because there are too many things that would have to fall into place. Just as another example, how many suspected we'd see so many teams lose in 2007 during the last week? It was those losses that were the primary catalyst to push LSU up to where they were.