We just recently put the idea of PoS on the table but we want to be sure that the community is 100% for it and that it's 100% fair.  We don't want to introduce a standard model that's beneficial only to a few.  If anything, we'd look into a DPOS model and currently it's still in the community's hands whether or not they want it.  As far as anonymization, we had a great model in place which was removed (explanation can be found here: http://forum.neoscoin.com/t/neos-and-the-future/316).  We're more focused on the usability aspect and for that we just need one thing - a solid payment gateway.  The issue that comes with that is our daily volume doesn't average out currently to an acceptable minimum for most of these services so we're just waiting patiently nearby and ready to code for when that day comes.