If Chelsea will face the championship as they faced the Club World Cup, we will surely see some good things, but now is not the time to talk too much, we need to wait for the first useful results of the club and then evaluate, for now I have bet that they will win the championship, it is risky I know
Chelsea will probably play the same game as they did in the Club World Cup, but we also have to know that the opponents in the Champions League are tougher, so we will likely see different results, depending on who Chelsea will face. If Chelsea faces big clubs early in the Champions League, I'm not sure Chelsea can go much further. Chelsea's performance is still not good enough overall, even though Chelsea has beaten PSG, but if they meet Man City, Arsenal, Liverpool, Real Madrid, or Barcelona, I think Chelsea will lose.
Chelsea didn't play that many tough teams all the way until the final game so that is the most important difference. If they played PSG level teams to that place then they would have lost a lot earlier, the only team they needed to beat was PSG and they won the whole thing that's to that. I am sure that we are going to see this not be the same thing again for a while and Chelsea will not be doing that great at UCL and the result will be the same.
We are going to see this Chelsea team to be something a bit worse, and we can see this to be a weird situation for the whole world. Because the team that won CWC, as in the title of the whole world, will end up being not the winners at UCL which is only Europe. In any case, we all know they won't, it is not that possible.