PSG will easily win Liga 1 again, playing happily. They don't even need new signings.
Even if they compete in Liga 1 with their current squad, and even with the reserve players, they'll win the title again.
PSG's main goal will be to win the Champions League again.
Things won't be easy this year. Real Madrid has restructured, and Barcelona is already a very good team. City will be very different from last year. Liverpool is extremely prepared. I don't expect PSG to win the Champions League again this year.
For Paris Saint-Germain to win the Liga 1 again, that one is very certain that will win but Paris Saint-Germain must put more hard work and they should come out with any hope that every team they meet is a lesser teams because every teams in the tournament is quickly targeting the trophy so with that every teams is really working hard to see what their best and afford can keep them in the table.
And talking about Paris Saint-Germain to win the championship league again, that one is not certain because championship league is unpredictable for now because all teams are ever ready for the trophy and although Paris Saint-Germain goals might be of winning the championship league again, so it is Left for Paris Saint-Germain to put in more hard work to be able to archived that because that is the goal of every teams that qualify for the championship league tournament.
I'll only pick any other team in the Ligue 1 to win the title if an investor goes there to invest heavily or buy the club completely, not just any investor but the one that could match PSG'S spending power and start rebuilding the squad immediately they arrive there, but for now PSG is the biggest club in that League, in terms of squad depth and quality players too, no other teams comes close.
The only team that's shown strength in winning the Champions league consecutively is Real Madrid, I don't know if PSG can replicate that yet, they're a very strong team but I think other top European clubs have strengthened their depth too so it's going to be more tougher for them than the previous season.