His current loan deal is due to expire soon but the Tangerines could keep him until the end of the season.
The 21-year-old has made 10 appearances for the Seasiders so far this season and came off the bench for their 1-1- draw with Hull City at the weekend.
Critchley said: “That's a discussion we're going to have now (about keeping him). We wanted to get through this game and see where we're at.
“I thought Ben came on and did really well, he made a real difference. He looked bright and burst in behind to get the lad (Reece Burke) sent off.
“He also produced some good crosses and deliveries. That's a discussion we're going to have now and we'll see what happens with him."