With simple open source market making bots we can begin to offer our bitassets for bitcoin at a tight spread and in large quantities at every exchange that lists them.
The concept is pretty simple. The market maker basically runs a bot that buys and sells a quantity of bitassets around the bitcoin price with a small spread. The spread will be determined by the exchange fees + the cost of hedging the bitcoin holdings. I think <1% can be realistically done for USD, and 1% for other assets.
Then within a given amount of time, say every 24 hours, the operator hedges all the bitcoin holdings of the bot by buying leveraged shorting contracts on bitfinex. If the bitasset isn't BitUSD, they additionally do a leveraged hedging from a forex/pm broker, hedging all the USD exposure from the bitfinex short. The lower the fees for the leveraged contracts are, and the more often the hedging is done, the tighter the spread can be offered while still making a guaranteed profit. The only risk will be exchange default risk and counterparty risk of the bot operator (if money is raised through a UIA).
Using this system we can offer a nubits style peg for every bitasset at every exchange!