Adam Radstock, of Stainless games gave Brian David-Marshall a quick spin on the new game and also revealed a new Planeswalker in a tour of the game. The new Planewalker is Nissa Revane, and can clearly be seen as a choice in this video HERE.
~Also, we have word of of a new MTG novel to be released on May 5, 2009. The title is 'Alara Unbroken', and is authored by Doug Beyer.
If I had to speculate (which this blog is all about), I would hazard a guess that this novel is just a 'one-off' sort of publication and meant only to be something of a companion tome to the 'Planewalker's Guide' to [fill in the blank]. I should think that from the title, we are given a glimpse as to what the plane of Alara may have looked like before (Nicol Bolas?) tore it apart. I am rather meh about the cover artwork and almost half-expect that this may change before its release.