Check out the record label "the agriculture" it's mainly comprised of artists from the now extinct illbient genre, many former asphodel artists and such. my personal fav. is Once 11. To me his music defines "future dub".
For more minimal futuristc dub, check out Pole.
I don't know if you would consider Xela's "for frosty mornings and summer nights" to be dub, it's a more like dubby electronica, but it's a really great album.
Everybody seems to love Jan Jelinik, but it seems a little boring to me...
If anybody else can suggest anything similar to this stuff that would be awesome. Thanks.