I didn't mind reskinned maps but at the expense of new ones disappoints me. Black Ops 2 saw Nuketown, Firing Range and Summit reintroduced and the latter two at a price. I think Treyarch's maps in that game weren't of the standard of the likes of WaW or the original Black Ops but bringing back the classics after a massive online campaign from a minority of the community gave them a get out of jail free card.
I don't really want to see any 'classics' now. It would just be further embarrassing. If they want to delve into the past for nostalgia; just give us the map for free as a gesture to the community instead of replacing potential new map slot and putting a hefty price on the package. I have no interest in Extinction either so that part of the content is worthless for me.
If they reskin any MW maps for Ghosts; it would be ridiculous.