I doubt it. Playing Town Map lets you control exactly what you get in prizes. If you play Rotomdex after, you will likely get those cards back in your deck, but then you wouldn't know exactly what your prizes are again. Better off just playing Town Map
I'm just afraid they're going for a nostalgia cash grab. "Eventually" doesn't mean anything other than "maybe."
Not that I dislike 1st gen pokemon, but it gets tiring to see them so often, and most of my favorite pokemon are post 1st gen.
That full art espeon is a pretty bad design. There is a lot of empty space above espeon on a spot on the card reserved for the art. Most of espeon is obscured behind the text...