For PSG being able to remain formidable this season is sure. They will be good or even better but what I cannot guarantee is PSG being able to win the champions league for the second time in a row.
Other clubs will rise up to the challenge and would likely out perform PSG, especially Liverpool FC.
No matter how good a team is winning the champions back to back in consecutive seasons is a very difficult thing to and PSG doesn't even the caliber of players that can make it happen. Quite alright they are good and next season they might get better but by that time a lot of teams that fumbled would have buckled up and the competition will not be as it was last season. The likes of Real Madrid, Manchester City and Liverpool would have gotten better by then. Chelsea should not be underrated as well.
No I don't think any other teams can be able to replicate what Real Madrid has done in recent times by winning the champions league back to back. PSG doesn't have it in them to win it th second time, their win this season was a lucky one because if they had met informed teams they won't had stand a chance. Next season favourite still has to be Real Madrid, you can never write them off in a champions league campaign. They might get some misfortune but be rest assured they aren't missing that many champions league finals and lifting the title. There's another underdog that many people will be neglecting but they do know how to win cup conceptions and that's Chelsea.
Replicating what Real Madrid have done in the champions league will probably be in the coming generations but definitely not now and even Real Madrid will find that difficult now. PSG was really lucky but luck or not they won it but we don't expect them to win it a second time because just as I said above alot of teams have made preparations and I expect a more though competition than last seasons.
Before Real Madrid won the UEFA Chiampions league back to back,no body would have believe it will be possible but Real Madrid achieved it and I believe in the world of football, nothing is impossible. Considering the performance of PSG in the last concluded UEFA Chiampions league and how strong the team currently is,I think PSG can still achieved the same records like Real Madrid by winning the Chiampions league back -back. The PSG team are so in form than any other teams currently. Coach Enrique still has many titles and trophies to win for PSG and will achieve a lot of it easily because of how in form his squad is and how far there are ready to go in winning trophies for the records.