Horus Heresy boxset cinematic trailer just released and it's completely epic in terms of lore. So many little details to the lore. Also the first time Primarch Horus Lupercal has ever been seen in action in a Warhammer 40k cinematic.
The 15 volumes of the original manga are slowly coming out. They've translated and released up to volume 7 so far, with volumes 8 and 9 available to pre-order. I've been picking them up as they come out but am not reading it until I have the full series.
For Syphon Filter fans; one of the creators of Syphon Filter, Richard Ham, talks about getting into the game industry and how Syphon Filter ended up getting made. Also lots of behind the scenes development information on the mechanics.