I haven't been following Dark Ascension spoilers too closely, but a friend posted this on Facebook today and I did a double-take:

That's right, darlings. Sorin has become a WHITE planeswalker. (Well, half-white. Whatever.)
The Daily MTG article about him explains this very odd transformation in context of the plot and helped to alleviate quite a bit of my WTFness/confusion.

That's right, darlings. Sorin has become a WHITE planeswalker. (Well, half-white. Whatever.)
The Daily MTG article about him explains this very odd transformation in context of the plot and helped to alleviate quite a bit of my WTFness/confusion.