Deflation by definition means a reduction in the supply of currnency. You will never see the currency supply of this or any other country reduced. Each country is openly devaluing their currency in order to get a trade advantage until another country "out-devalues" them. Sorry for the made up word.
Deflation has nothing to do with the price of any good or service.
The "new" definition/idea that lower prices mean deflation is part of the "deliberate dumming down" of America.
The larger the money supply the higher the price. The higher the velocity of money the higher the price. Right now prices are rising but are much moderated by a very low velocity of money. Could prices go lower? Yes! As people run out of currency velocity slows even further.
Their has been no reduction in the currency supply and never will be until the system blows. A reduction in the supply of currency would cause the system to blow apart from inability to pay current outstanding debt.
We could see lower prices for a while but we will never see deflation.
P.