Well, Megan often played the role of an adult anyway. That girl was sharper and wiser than plenty of people thrice her age. Not to mention being one **** of an arse-kicker. And I don't think contact with Ponyland would have been cut when she grew up, myself. It's her second home after all.
At any rate, I needed an adult version of her (I need to make Molly and Danny too, but I haven't found suitable base figures yet) for stories set in the present day. For that same reason I intend to buy a duplicate Sundance, and suitable baits for grown versions of others.
As a bonus, here is a picture of Megan fighting a Putty Patroller: