It's on the cards that...

Meaning

There's a strong possibility that...

Examples

• John: Do you think they'll approve the project?
• Alice: <b>It's on the cards that</b> they will, given the positive feedback we've received.
• John: I hope so. It's been a lot of hard work.
• Alice: Yes, but <b>it's on the cards that</b> all that effort will pay off.