With all of the details found here Disney has announced a new prix-fixe meal for the Rose & Crown Patio, at least through the end of Illuminations.

Quote Originally Posted by Disney Parks & Resorts
Beginning Jan. 18, 2019, you can turn this dream into a reality – delight your taste buds and dazzle your eyes with the “IllumiNations” Dining Package!

With the “IllumiNations” Dining Package, you can sit back and relax on the patio of the Rose & Crown Dining Room, located in the United Kingdom Pavilion, while dining on classic British fare and enjoying sweeping views of World Showcase Lagoon.The package includes a prix fixe menu that features a selection of Rose & Crown favorites, as well as unlimited alcoholic and non-alcoholic beverages.

Reservations are available starting January 17 for reservations starting on January 18. Pricing is $85 per adult (ages 10 and up) and $35 per child (ages 3 to 9), with tax and gratuity included.
I know some will love it, but for me, wow ... they are making an expensive and unnecessary "party" out of everything!