PSG is now at its peak, and I don't think there's any question about their dominance in Ligue 1. They'll undoubtedly dominate, as no other Ligue 1 team has the financial wherewithal to challenge PSG for the title.
And I'm confident that PSG's management and Enrique will continue to prioritize European competition. They certainly have the ambition to defend their Champions League title, and they're very likely to retain their Ligue 1 title.
That dominance in the French League is not happening now, as for the past few seasons, no team has been able to break their dominance in the league. Now, PSG's abilities are far above the average club in the league, and it seems difficult for any team to compete with them for the Ligue 1 title. PSG's level is rising, as they have become one of the strongest teams in Europe, and if Luis Enrique can maintain this level of performance, they will become a formidable team to be feared by opponents.
Honestly, no team all around the world seems like they can beat PSG, so it is not about just ligue 1. People kept calling ligue 1 "farmers league" because it sucked and PSG was the only good team, but people around the world are seeing that PSG isn't good because the league is bad, PSG is good because others suck. So because of that, I am not really seeing Ligue 1 to change anytime soon neither.
However, we could always see a battle for second place, which is the problem, no team became uncontested second place for many years in a row. Monaco and Marseille is fighting for it now, but lets see how it will move. We need to really see how they can move so that we can make sure that second place is growing as well, so they can be better.