It all comes down to the definition of Hybrid, which biology can't seem to decide upon. All the Eublepharis subspecies, Angramainyu, and Turcmenicus can interbreed and produce fertile offspring. Whether this qualifies those offspring as Hybrids or if we have over classified and sub-divided the genus... you'll have to decide for yourself.
I read a lot about that a few years ago and everything I saw said the "Leopard Gecko" we have the pet trade is a mut/hybrid. But in the last year I have found a lot more info saying that isn't the case. I was reading up a natural habitat for leos and if I can find them I will share the links.
I haven't really heard leopard geckos to be considered cross-species hybrids (they are E. macularius), but what I have heard is that the pet trade leopard geckos aren't really equivalent to any pure wild species/subspecies because in the early days, the subspecies of E. macularius were crossed without regard to regions.