Of course the price will immediately rise, if it has been accepted by all countries, even at this time perhaps large companies are preparing to buy if regulations regarding BTC or news about BTC goes well.But it's just a matter of time.
That is what will happen , there are lot of companies now that seeking their chance to invest or even use bitcoin for their company but hesitant because of government restrictions and some other issues attached to using bitcoin.
but once this comes available and safer then those will jump buying and the price will surely get high that is what we want to see for a lifetime now.
wondering how much from that 100k will be the value then?