He's taking the Liverpool job when he wants to take it.
The only people in the way is Klopp and himself.
It's as simple as that.
If you're talking about the German job, then why not?
Hansi Flick is a manager who spent years as assistant manager, told he wasn't good enough for the top job after 2018 WC, moved to Bayern to prove he was good enough and proved he is.
If you're talking about Klopp, then it's a resounding "no".
He's stated several times he doesn't want the job, would miss the "madness" of weekly training and pressure and wants to stay in club management.
If Liverpool get rid of him in the next few years, it's against his will.