Hobbit is going to be filmed in 4K and also in 3D for double the storage requirements. All lot of what Andy talks about is addressed in Nvidia's cloud and i will try to cover it in the main article.
And as far as something to replace the SSD and blow it away in every metric is FusionIO Storage - a PCIe 3.0 add-in board with super low latency that is just introduced at about $2500 (IO-FX) for servers (and you can use them in parallel), down from $14000 last year. The movie industry is starting to adopt them for this kind of massive data manipulationhttp://www.fusionio.com/http://www.fusionio.com/platforms/iofx/http://www.guruht.com/2012/01/fusion-io ... -iops.html
Later on this year, it should become available to gamers and home PC enthusiasts. Maximum bandwidth and super-low latency - instant loading of levels.
And if it is successful, it will become much more reasonably priced.