Will a common currency for asia become a reality?

We all know how the Euro was touted to the public before all the numerous problems cropped up.of course if there was a common currency for the whole of asia,lets call it the "rupee" since most of the aisan countries use one forem of rupee or the other,the consequences of that are to put it simply "earth shattering".
for one if that dream became a reality,half of the worlds population will be represented by a single currency.they will be the most powerful economic powerhouse that this world would have ever seen.and lets not forget that the developing naiotns that comprise asia are all registering huge growth figures not just for one year but year after year.such growth has not been seen either by the europeans or the americans.
the U.S would definitely not want this dream to become a reality but unfortunately for the americans most of the asian nations are slowly but surely realising this dream.it will probably start with a free trade area pact,a huge one,the likes of which has not been seen until now.that done,the next logical step will be a merger of currencies,if that happens,in all reality it would be called the "rupee".but lets face reality,the asian nations have all warred amongst themselves until recently and some of them still carry that resentment.most of this hidden resentment is aimed at the japanese.but these nations like china,korea,phillipines etc must realise that the war was over a long time ago anhd it is indeed time to carve out a new future.
that said,it is high time that they started considering a free trade pace seriously.
China and Japan would probably have to start this off.and i am sure that Russia would also want to be considered a part of asia and would want a piece of the pie if for nothing else other than tho thumb nose at the americans!
such policy decisions would take brave initiatives on the part of all the major asian countries namely India,China,Japan,Russia[if it wants to be part of this] and Korea.australia may choose to be out of this but if this dream were to come about and thy choose to do so,they will be the losers.furthermore a policy decision on the part of India,Russia and China is worrying the U.S to no end.that is the establishment althoough an informal "TRIAD".has the next super bloc been formed?
well all of the above are just surmises,guesses and random thoughts.but so often the rumors become a reality.after all "truth is indeed stranger than ficiton",is it not?
the fact remains that India,China,Japan and Russia are determined to establish a uni polar world.to what lengths will they go to accomplish this?