This new 27-disc set, is now listed on Amazon UK and available for pre-order:-
The cost is £180 (US $235, or 210 euros)
There is also the blu-ray version listed too (18 discs), available to pre-order:-
Star Wars: The Skywalker Saga Complete Box Set [Blu-ray] [2019] [Region Free]
The cost is £65 (US $85, or 76 euros)
The DVD version (9 discs):-
Star Wars: The Skywalker Saga Complete Boxset DVD [2019]
The cost is £45 (US $60, or 53 euros)