The new Magic set Mirrodin Beseiged is coming out tonight at midnight.
You can go here for a visual spoiler of the cards:
The biggest thing to me is the infect creatures have grown BIG, and white now has infect.
Not sure how I feel about the faction packs just yet. I'll rpobably do one of each, then go from there.
I like the new Myrs. Can't wait to add them to standard.