if all goes well for Liverpool I think they can finish in the Champions League Zone next season.
I think they will do better than just merely qualify for the CL, i think Liverpool is going to be back in the picture to compete with Manchester City for the EPL title, Klopp has ample time to study his team and recruit the players he needs, and that is what they are doing already. Liverpool are not playing the in CL next season, thus they can fully concentrate on the EPL and give City a good fight. Next EPL season will be so interesting, City are going for their fourth consecutive EPL title, and all the teams will be out to stop them, it'd be so competitive.
Next season, Liverpool are participating in the Europa League despite not playing the Champions League, meaning they have a chance to win the Europa League trophy for the first time. Even if Liverpool competes with Manchester City to win the EPL title, Liverpool may not be able to compete with Manchester City.
Manchester City won the Champions League title alongside the League title last season, meaning they had an equal focus on both titles. Next season too, they may have the same target to win the Premier League title as well as do well in the Champions League. In terms of strength, Liverpool will be far behind Manchester City in terms of winning the Premier League title.