For me, it's too early for any bold claims but I don't see it going away quietly. It's weird, the mercenary wars of the 60's and 80's - some of them were rather silly proxy wars between USSR and USA (Nigeria was a total mess), but lots of them were USSR backing great communist leaders like Lumumba who had the peoples support.
In this case though - the coup is originally anti France, anti colonial, it goes forward, and then they decide to brazenly wave the flag of the West's greatest enemy (Russia). It's not like there's much of a material gain for the actual lower class people in Niger in getting Russia involved (unlike in the 60's-80's). It's just the top brass, companies, and governments of the coup's leaders that will get a fat payout and continued guns n armour. What guns and armour does Russia even have to trade with at this point though? They're already at war.
What the fuck is going on? Is it too stupid to say that the top dogs in Niger are now deliberately inviting a war against the West? Is it that they thought war was already going to happen, so they're getting all the backing they can to try to scare the French from striking back?
Could this end in an absolute NATO 'peacekeeper' goatfuck?
My guess is that AFRICOM has moved most of it's assets to Europe (it's not like recruitment numbers have gone up since the Ukriane-Russia conflict, so something has to give somewhere and they aren't going to pull people from the Pacific or South America) and the local nativist elites have taken notice and are acting accordingly. We have never really known how many 'trainers' were in Africa, but my guess is that most have been reassigned to other areas. It just isn't as lucrative to compete with the Chinese for African resources anymore, we are trying to set up for an end game, not fight over resources.
It's like how Saudi Arabia is now pulling abit away from direct U.S. orbit, if they are doing so, imagine the lack of resources (bribes) that are being sent to African countries right now. Something is going on with U.S. hegemony. What it will lead to and where it all ends, idk, but this all strikes me as geo-political crisis overload outside of South America.