FIFA’s decision to disband the anti-racism taskforce speaks volumes about the culture within footballing which frequently pays lip service to issues such as racism while failing to do anything of substance to tackle them. Footballing culture across the globe is ridden with bigotry of all shades, including a particularly crass variety of racism. The Russian national management, as with FIFA, have made a series of empty promises about rectifying the situation but in reality have done nothing but gesture towards the problem. Racial incidents will certainly be a feature of the next tournament once again, no thanks to the footballing authorities in Russia or in FIFA.
As Russia comes under more intense scrutiny for their unethical practices in other international sports competitions they will continue to refuse to back down. This is exactly what they have done with the Olympics, the conflict in Syria, and the conflict in the Ukraine. It will be another facet of Putin's orchestrated effort to show himself as the defender of Russia against the West.
Russia has a history of racism, sexism, and homophobia, and it is highly likely that without the Anit-Racism task force, that Russia and it's citizens are going to resume the kind of racist behavior that they engaged in before the anti-racism task force exhisted, and that the FIFA 2018 world cup is going to be very dangerous.
No, there is no reason for Russia to revive racial tensions at the 2018 World Cup. The fact that the anti-racism task force has been disbanded suggests that it does not see a reason to continue. They have not found that racism is so pervasive in the sport that the task force needs to continue.