It can have its hidden ability.
Let me just set this straight, it is never guaranteed that you will get a hidden ability. It seriously is just luck, I just spent the last couple of hours at my college (waiting for a ride) and ran into both normal Dittos and Imposter Dittos.
Also, back online and list updated once again. The Co-Jones, whenever you are ready with the two pokemon, just let me know, I’ve got it all set. I’ll just be organizing the Dittos I got in the last couple hours.
[details=Spoiler]Omanyte, Kabuto, Heracross, larvitar, Purrloin, Yveltal
Teddiursa, Mincinno, Nuzleaf, Cacturne, Vullaby, Luxio, Zebstrika, Galvantula, Togepi, Clefairy, Ponyta, Slugma, Tropius, Rufflet, Dusclops, Sawsbuck, Maractus, Gastrodon, Palpitoad, Snorunt, Dewgong, Muk, Drowzee, Munna, Girafarig, Forretress, Bronzong, Excadrill, Krabby[/details]