I could definitely see him leaving. Seven years is a long time to be at any club in this day and age, and having to maintain a competitive level with Liverpool against City must be frustrating. When his team gives 110%, they can just barely challenge City. Anytime they don't have an amazing, flawless season, City win by default. Who wouldn't get fed up with that? Liverpool have been the best they've been in the PL era under him and he has a single league title to show for it. Ten years from now, the trophies are what people will remember, not the circumstances. It will certainly be in the back of his mind that he's choosing a less impressive legacy by staying at Liverpool than if he'd gone to Bayern, Real Madrid, Barcelona, even PSG. He came very close to winning a lot more at Liverpool than he has, but at the end of the day, people don't look back and cherish the close 2nd-place finishes or the lost finals. He must be getting tired of that. He's one of the top managers of his generation, and it must be hard not to feel like he has wasted his time a bit at Dortmund and Liverpool, perpetually trying to eke out what scraps of success can be prised away from the club that dominates the league. Seven years is a long time to endure a never-ending uphill struggle.