The newly-promoted Premier League side have had a bid for the 21-year-old accepted, but are awaiting a final decision from the Blackpool striker.
"We've had a bid accepted by Blackpool. We've agreed terms with the agent," Sky Sports News quotes the Bluebirds manager as saying.
"Tom and his dad were both on holiday and on a professional course at the time, so Monday was the earliest they could get down to us. We had a good chat, a cup of tea and a biscuit and a look about the place.
"Tom said the last couple of days he had a domestic issue to deal with, but Friday morning the ball's in their court and on Friday morning we'll have a decision one way or another."
Ince scored 18 goals for Blackpool last season.