The Star Wars 3.75 inch Vintage collection news breaks down as follows.
Hasbro will bring a Jabba's Palace Playset to the line which will also include Han in Carbonite and Ree-Yees. The figures will be carded in the box if you want to display them that way. This set is exclusive to Walmart in the US but should be OK for an international release via your local independent. It is unlikely Asda will bring this into UK stores.
There will be a three pack of Jabba's Guards to supplement the Sail Barge. The Sail Barge will be offered to the UK, it seems via eBay in March but we await more info.
And to add to the Sail Barge display even further there is a Vintage collection Skiff with flying display stand. And if all that wasn't enough, Walmart will be carrying an exclusive Lando in Skiff Guard disguise.