Felt the need to resurrect this puppy.... I just figured this out.... If you get Zymurgy magazine, take a look at issue March/April 2017. Right there on page 18, Fuller's themselves are endorsing Danstar/Lallemand London ESB yeast. So if you're looking for WLP002/1968, then look no further than the new London ESB yeast from Lallemand.
Cheers.