Multi-national corporations are part of the definition of imperialism. However they cannot be considered actors of imperialism, since they don't have their own militaries but they need to rely on a bourgeois state to conquer new markets for them.

France yes, but it's increasingly integrated with Germany and the rest of Western Europe so unless I'm missing something I doubt there will be intra-European competition. So the EU instead of France, even though multiple states may exit the union and realign. The USA will definitely struggle to keep its hegemony. Russia is another imperialist power directly confronted to the previous two. They are all in deep economic recessions, weakened, distrustful and ripe with internal contradictions, like in all pre-war periods. China is none of those things, but they will attempt to preserve the Belt and Road project and their control of the South China Sea.