This is a recording of a presentation Steve Will, chief architect of the IBM i, made to COMMON Europe yesterday (March 27 2015).
It contains a lot of interesting information about the present and the future of the IBM i operating system.
Update March 30, 2015
If you do not want to watch the whole video Steve Will also wrote a blog post about this on his blog that covers the same points, although not in the same detail. You can read it here.