Nothing new here except more names. 12 species or more now, in the Amphilophus Citrnellus complex and some figure it will go well over 30 names. No telling where or when this silliness in naming will ever end.
If it were a land animal, rather then an ornamental fish, the whole complex (RD, midas and all the rest of these fish) would probably get one name, and that's it . Maybe they would describe a few sub-species, at th most. Funny how the ichthyologist use subspecies for a fish important in aquaculture, such as Oreochromis niloticus, but when it comes to ornamental tropical varities, they are more then reluctant to classify them as subspecies. But the more strains that are given full species status, the more ways you can sell what is for the most part, the same darn fish.