The Russians will supply pretty much everything Niger will need, including military assistance. How the BRIChinaS imperialists handle Africa will be interesting to watch. The Western imperialists have trans tyrannied themselves off the continent.
China already has a model of Chinese Security protected townships that are successful at employing the productive Africans in relative safety. They may extend that model.
More likely that the Chinese will move in to “help” Niger with their belt and road program.