No, Euro.
I guess, the next currency is likely to be CNY. the Chinese economy from year to year is getting stronger globally. A trade war between China and the U.S. Because of the U.S. fear of disappearing US Dollar dominance worldwide and replaced with CNY. if not for that, surely there would be no trade war between them.
Although China is aggressively propagating Yuanisation throughout the world, it is almost impossible for Yuan to replace the dollar with consideration:
The US dollar has been the world's main reserve currency for decades. According to the IMF, the US dollar currently covers 58% of the total foreign exchange reserves in the world and around 40% of world debt denominated in dollars. The IMF said the total world foreign exchange reserves in the second quarter of 2019 was equivalent to US $ 11.735 trillion. Of this amount, US $ 6.777 trillion (57.75%) was the US dollar while the Yuan was only around 1.85%. Gab is too big to compete with China.
(Source: http://data.imf.org/?sk=E6A5F467-C14B-4AA8-9F6D-5A09EC4E62A4)
The global conspiracy of dedolarization will succeed if many countries agree and act to de-diversify their foreign exchange reserves into other forms or another currency. But because the axis of the world economy is the United States, foreign exchange reserves in the form of dollars are very necessary because at this time the dollar is still considered the safest save heaven and its value tend to rise when conflicts occur. So foreign exchange reserves in the form of large dollars can buffer domestic economic problems and external impacts.
The trade war between China and America is only an attribute, the real war between China and America is the ideological war of socialism vs. capitalism. The OBOR (One belt one road) program in China is a form of aid diplomacy not much different from the American Marshal plan or the Soviet Union's Molotov plan. The current conflict between the US and China is a struggle for the US (the dominant power) and China (the challenger) to expand their sphere of influence. In addition, Trump's inward-looking orientation (American First) is maximally utilized by China to maneuver into a regional power.