Brexit will go ahead, but Ireland will lose a lot of the single market integration to avoid the hard border that would otherwise be imposed by a clean break Brexit.
The EU will continue for a few more years yet, maybe morphing back to the original EEC model or completely breaking up in the next ten years.
The Chinese empire building continues apace, with consolidation in the south China sea which is grudgingly accepted by neighbours to avoid unfavourable trade with China.
More African countries will find themselves on the hook for binding trade & debt deals that effectively give China a say in the internal politics of those countries (we’re already seeing that now).
Investment in future oil exploration is cutback as EV’s start to make a real dent in oil consumption, resulting in a period of glut followed by shortages three or four years down the line as new fields are not developed and expensive fields are shut in.
Car buyers will have a dilemma, either go EV ASAP or have a couple of years of cheaper motoring in an ICE vehicle, those who can’t affors new will almost certainly go the second option.