Here's the Dengeki Bunko announcement trailer:
https://www.youtube.com/watch?v=qPIEC-x9eoA
Here's a new OlliOlli 2 trailer:
https://www.youtube.com/watch?v=59YkRvKc0p0
Here's some new Destiny of Spirits trailer, as it "approached" 1m downloads (that seems kinda low to me for a WW figure):