Haven't had time to look into this yet. Can anyone that has provide a quick summary?
Main feature is targeted at altcoin community - ability to build your own POW altcoin on top of NXT protocol.
NXT currencies (which are different to assets) can be made redeemable for base amount of NXT (purchase price), sort of like an insurance policy against the price tanking.
It also has various other attributes to support legal crowd funding like the bitshares UIA will have.
edit: no market pegged currencies because the NXT community doesn't believe they are possible