If successful, this would be Niger's fifth coup - on the face of it, not an exception to their historical norm. Fortunately, it's too early to declare the coup a success, and the deposed government might retain more grassroots support than previously couped regimes, on account of it not being another dictatorship. There has only been one successful coup against a democratic government in Niger, and the coupists' rule ended three years later with their assassination in another coup, followed by elections.
One of Niger's coups in 2010 actually was to enforce term limits and the junta did willingly give up power as soon as realistically possible.