Next week's Billboard 200 will be quite exciting, with some interesting releases this week and the Grammy effect at the end of the week possibly shaking things up.
The three main releases this week are from: Bob Dylan, a huge artist with tons of adult fans; Fifth Harmony, whose album has been getting lots of hype and is currently #1 on iTunes; and the NOW 53 compilation, which has been known to have very big debut weeks consistently.
In addition to these releases, Taylor is still pulling in huge numbers week after week, and Ed Sheeran's "X" is nominated for AOTY, so that hype combined with the Grammy effect on Sunday night could be enough to give him the surprise #1.
Oh thought you meant The week after the Grammys until I read 5H. For this week's tracking period (11th Feb), probably Taylor Swift. For the week after the Grammys (posted 18th Feb), Rihanna.