In Lenin's definition, Imperialism is the highest stage of capitalism, its maturity, when the capital concentrates on few Big Groups. Imperialists are struggling and competing with each other in crucial issues like EV's (Electrical Vehicles), Semiconductors, New Energies (to be independent of oil and gas, otherwise they will be strategically weak, e.g., in wars). So you will hear more and more about Green Deal, Green New Deal, Next Generation Europe, Save the Planet, Greta Thunberg, Welfare States, etc. But all these are new ideologies of imperialists. But for sure we are going to see new World Wars in 15-20 years.