It seems the return of the Vintage series in 2018 hasn't quite put the nail in the coffin of the 3.75" Black Series figures.
It has been confirmed these will continue as a Walmart exclusive with the release of the Last Jedi wave of articulated 3.75" figures. The first wave is made up of four figures - Jedi Master Luke Skywalker, Praetorian Guard, Executioner Stormtrooper and Resistance Tech Rose.
The figures will retail in US at $12.99. We would assume like all previous 3.75" Black Series figures, these will come over into Asda stores in the UK around the £15 mark.