"According to conservative estimates, by 2017, China will overtake the United States as the world's largest economy, and by 2050, its economy will be twice as large as that of the United States. Chinese influence will extend well beyond the economic sphere. The full social, cultural and political repercussions of China's ascendancy will be felt sooner. In the coming decades, the West will be confronted with the fact that its systems, institutions and values are no longer the only ones on offer."[When China Rules the World -The End of the Western World and the Birth of a New Global Order by Martin Jacques]
The shift of world economic power to the East and South will bring about the end of the ability of Western monopolized sources of information to criminally misinform, dis-inform and instill the fraudulent fears that have built an infantile acceptance of continual neocolonial genocide as necessary. A current example being, though on TV everyone sees the brand new white Toyota trucks and sophisticated heavy weaponry of a wild ISIS until recently successfully destroying America's designated enemies, President Assad's Syrians and the Shiites ruling Iraq. TV and print media commentary portrays the most powerful military in history, the US Armed Forces, as waring for five years unsuccessfully against this ragtag ISIS. ISIS has long ago been identified as yet another terrorist organization created within the CIA's wide international network. A few years earlier the same gangs in heavily armed pickup trucks were portrayed by 24 hour saturation CNN and al Jazeera as the citizenry of prosperous Libya in revolt. The enormous TV believing population, even today, will still not have heard that Libyans had enjoyed a UN Quality of Life Index higher than nine European nations including Russia, with fine free health care and education in a real socialist democracy, and that Gaddafi was Libya's and black Africa's hero for fighting neocolonial exploitation.
New sources of information will become available in a multipolar world. The domination of an imperialist U.S.A., run by wealthy capitalists that confuse and exploit the poor at home as well as abroad will be ended by the rise of a supremely confident socialist China. African Americans will figure out that those ruling white imperialist businessmen, frightened by the riots after King's assassination---promoted a silenced King, murdered by an alleged conspiracy of federal and local government officials  upstairs---of the number one American hero in order to get his image as a revolutionary off and out of the streets of African American neighborhoods.
As African Americans become aware of their having been taken in by white imperialist-run monolithic mainstream media TV, and they become aware of the horrors of the death and destruction America has brought to dozens of non-white populations overseas, the King-betraying leaders of a wars supporting civil rights movement will lose all credibility. King's civil rights movement friends Andrew Young, Jessie Jackson, Julian Bond and John Lewis, (a few of whom had held the dying King in their arms), all went on to lucrative political careers serving the war establishment while the killing abroad that King gave his life to fight against, went on for another eight years. Traitors of King will be replaced by new civil rights leaders who respect King's warning that "There will be no progress on issues of social injustice at home, while we go on killing the poor overseas at a cost in human and financial resources that make that progress at home impossible." 
The few Black leaders, that truly did follow in King's footsteps, but were unable to overcome the overwhelming power of mesmerizing media, will be immortalized alongside of King. Louis Farrakhan of the Nation of Islam, Obama's former pastor, the fiery Rev. Jeremiah Wright, who was ridiculed for sermonizing "God damn America for her crimes against humanity!" and outspoken , Prof. Cornel West of New York's Union Theological Seminar and Princeton University's Center for African American Studies who often called America's first imperialist African American President, "a black mascot of Wall Street oligarchs and a black puppet of corporate plutocrats, heading up the American killing machine and proud of it," and kept pointing out that Obama was put in office by arch criminals like David Rockefeller to fool the non-white world into believing America with a black president would be less imperialist and less murderous.
Your author suspects eventual disgust for Black clergy's fifty years of betraying King and copying white clergy support for genocidal regime change bombings, invasions and occupations will bring African American communities a measure of freedom from control of 'patriotic' organized religion. In the soon to arrive multipolar world African Americans might come to remember their enslaved African ancestors had had their own sophisticated beliefs regarding the eternal and life's mysteries before the white conquering sword and musket brought enforcement of the 'Christian' cross.
When the African American community, still solidly unified by its traditions of brother-sisterly nobility and relaxed enjoyment of life, has access to the confident anti-capitalist and pro justice and peace motivated teaching guidance of their martyred King's last year of life, that well recognized African American congeniality can be expected to be the model for a new and happier U.S.A.
Sometime during the next twenty-five years, as the United States slowly begins to lose economic, political, and cultural and communications hegemony over the rest of the world, a much nicer, peaceful, pleasant, prosperous, free and expressively energetic America will begin to take shape. The business-above-humanity rulers of the nation finding themselves in a multipolar world led by an eminently successful China (earlier for two thousand years the world's most culturally and materially advanced civilization), will gradually permit the racism no longer useful to them to dissipate. Americans will then be free to join majority Humankind in emulating the affection prevalent in the happier societies of planet Earth.