Klopp is a great trainer for sure, but I don't think that he is able to make them finish in top 4 this season with the average players he have to deal with. The only world class player they have is Coutinho. Which isn't exactly enough for a club as Liverpool.
The team may not be loaded with world class players, but it has a reasonable mix of talented players with a decent amount of depth. The average age is also low which suits the Klopp way of training them and making them play with high intensity.
Top 4 is certainly possible. If they miss out it will be due to Spurs who have a solid core and a settled team.