I think that there is supposed to be an enhanced version of Miki in the offing.   Coincidentally, there was an item today in the newspaper I read, criticizing the phrase, "new and improved".   If it's "improved", then it obviously can't be new.   Likewise, if it is new, it can't also be "improved".

I don't really know why 3D-designers insist on clinging to these names.   OK:  Victoria and Aiko haven't done DAZ any harm and, similarly, E-frontier won't be in a hurry to ditch Miki, but why call the new G2 female Jessi?   She doesn't look anything like the Poser 6 Jessi (thankfully) and I imagine the Poser 6 Jessi got her name only in order to allow people to snigger (pretty briefly, I suspect) over "Jessi/James".