The 21-year-old is one of the most sought-after players in the Championship after making his name as a goalscoring midfielder at Bloomfield Road.
Cardiff are looking to strengthen their squad after promotion to the Barclays Premier League, but Paul Ince reckons it is only "50-50" his son will move on.
"Cardiff have come in massively for Thomas, the chairman's accepted the offer," he said in an interview with Blackpool's official Youtube channel.
"I'm not sure what the offer is because I've been away, but that's been accepted, so it's a case of when he comes back next week, Thomas, we'll sit down and see what he wants to do."
Blackpool have been on warm weather training in Portugal, but Thomas Ince was given extra time off because of his involvement with England Under-21s and is not due back at the club until a week on Monday.
- Sports & Recreation
- Paul Ince