I believe we'll see some form of inflation through the introduction of new currencies. when the price (ie. deflation) of one cryptocurrency becomes too high other currencies will jump in. the outcome however is unclear, because we are now at an unprecedented point in history. because of the openness of the bitcoin protocol everybody has now the possibility to create his own currency - and the price of adopting a new currency will become marginal for businesses, thanks to new APIs. I have no idea what the long term equilibrium will be.