there is a probability
The euro is currently 1/3 of global transaction volume, and some think its potentially possible that the Euro coud be placed to surpass the dollar in importance. The euro like the dollar is a fiat currency that is used for trade between european nations and their allies when convenient. With sanctions tarifs and general economic bullying becoming the norm for america and its dollar, some nations are choosing to look for ways to escape dollar hegemony.
It's not likely to really happen
The euro is a strong currency but it has little chance of becoming the worlds reserve currency. It is more likely that folks will choose to move away from any financial institution that can basically starve your population with financial and trade sanctions. In my opinion cryptocurrency will find it's way into the worlds economy so that users can escape the easily restricted fiat currencies. Value based in valuless debt notes is on its way out and this will probably be the segway into the next financial crises.
Posted from my blog with SteemPress : http://profitribes.com/euro-to-replace-the-dollar/
Lets hope all Fiat is replaced by crypto!