be on the cards (British, American & Australian) also be in the cards (American & Australian)

be on the cards (British, American & Australian) also be in the cards (American & Australian)
to be likely to happen
Usage notes: Tarot cards are a special set of cards with pictures on them, which some people believe can be used to find out what is going to happen in the future.
'Do you think there'll be an election next year?' 'I think it's on the cards'. (often + for ) There are some big changes in the cards for next year.