We are talking about who will win the Champions League next season, and the game is still quite long. If we only talk about the possibilities, every team participating in the Champions League has the possibility to win the title, and if we only talk about the possibilities, PSG may be able to win the big-eared trophy for the second time in a row.
The competition next season will be even tighter, now the big teams are trying to improve their performance and squad depth to be even better by bringing in new ammunition. Meanwhile, for PSG, they seem to have found the right formula for their squad to face the next season, so now we don't see PSG like the previous seasons which were so busy to be able to bring in star players.
I think PSG winning the champions league they are now well motivated than ever, and next season for them would be when they give more to see if they can recreate that championship again. So they are a team to watch and definitely a favourite in the list of next season's UCL possible winners. No doubt othe teams are improving their squad depth with the transfer window open but I'm football a lot of unexpected events has always happened. And PSG can be one of such again even though it's not certain.