Found from one of the academy accounts on twitter:
Sepp van den Berg looks set to leave Liverpool on loan once again this summer but will start pre-season with Jurgen Klopp’s first team ahead of the Reds reporting back to the AXA Training Centre on July 4. #lfc [liverpool echo]
Reds bosses have been impressed by the Dutchman’s progress during his time away on loan, and he will start pre-season with the Liverpool first team as a result, as per @TheoSquiresECHO
Liverpool have already fielded enquiries from sides in the Premier League, Bundesliga and La Liga to sign the defender for the season, as per @TheoSquiresECHO
That's what we wanted to hear about Sepp. If he can get first team football in one of the best leagues in the world we've got reason to be excited by him. He's done well at Preston and while my guess would have been another Championship loan with a promotion chasing team, it sounds like there's going to be enough interest from a higher level. Think Germany would suit him for the time being but if he impresses wherever he goes I think we might have a really good player for the future.