Assuming that the rumoured Food type is real, which Pokemon are going to get changed to a Food type? The obvious shoe-ins would be -

>Applin line
>Swirlix line
>Alcremie
>Vanillite line
>Tropius
>possibly Exeggcute line (maybe Food/Psychic?)

Have I missed any? Maybe Farfetch'd could be Food/Flying due to holding the leek? That might be a stretch though.