The 2011 Man of Steel continues to be linked with a return to St George Illawarra, with Castleford chief executive Steve Gill announcing this week the club would not stand in his way if he is adamant about a move.
Chase declined to shed any light on his plans following his side's 28-12 defeat by Leeds in Friday night's Tetley's Challenge Cup tie at Headingley but promised to give his all for the club while he is with them. "I am taking every day as it comes, it's out of my hands," he told Yorkshire Radio.
"While I'm here, I focus on my job because my team-mates expect it. I could be here for a week, a day, a year, two years. It's out of my hands but I have to focus. I will let people speculate, let everyone else worry about it - I find it quite funny actually."
Chase did his best to keep Castleford in the Cup at Headingley, scoring one try and creating another for his half-back partner Jamie Ellis as the Tigers led 12-10 after an hour.
Leeds finished the stronger side, however, and Castleford caretaker coach Danny Orr revealed afterwards that Chase was feeling "down" after over his contribution.
"It wasn't one of my best performances," Chase said. "I needed to be more composed. I tried to make things up, I could have got more out of my sets and my kicks weren't good enough. It wasn't just my fault but I played a big part in why we didn't win.
"It was a good effort but we let them come too far. We were winning the ruck but my kicking game wasn't good enough. The effort was awesome but we could have been smarter.
"It's disappointing to go out, I won't lie, especially as we were in the game for so long, but that's the difference between good and not-so-good teams. We cracked and we need to learn and fix it up and take it into the Super League - then we will get more wins.
"I always try and put it in when I put on a Cas shirt. It's our job, especially me, but I wasn't smart enough and I have to learn and next week I will have to be. I always try hard but I need to be smart for my team."