The Celtic goalkeeper, who has been linked with several clubs including Benfica, said: "It is nice having clubs come in for you because it means that you are doing well but we will just have to see."
He confirmed he was happy to play Champions League football after helping his side reach the group stage by defeating Shakhter Karagandy but added of his future: "I don't know. I am obviously a Celtic player at the minute and we will have to see what happens over the next few days."
The 25-year-old Englishman was delighted by Celtic's second consecutive qualification for the group stages. He added: "We have a fantastic group of players and the lads have given 100% and worked for each other. I think you can really see the team. It is a fantastic night for everyone and it is brilliant for the manager and coaching staff because it is exactly what they deserve."
He praised both Celtic and Newcastle, his parent club when he went to Parkhead on loan in 2010. "It's been brilliant," he said of his stay in Glasgow. "I have seen nothing like Champions League nights here. It is a fantastic club to play for and the fans were the 12th man and that was what we needed tonight."
Forster has been called up by Roy Hodgson for the England squad for the match against Moldova and said: "It gives me something to look forward to next week. It encourages me to keep working hard and trying to improve. That's what it's all about."
His aim for the season is for it to end in Rio de Janeiro and the World Cup. "Every English player wants to be on that plane. You keep doing as much as you can and playing in the Champions League can only benefit me going towards that," he said.
Georgios Samaras reflected a sense of vindication felt after the team was criticised in the wake of the first-leg defeat. The Greek striker was one of several players who felt the media judgment was severe and were annoyed by the reaction of their opponents after the 2-0 defeat last week.
"Normally, I don't like to speak in the aftermath of games, but I really want to say that Thursday morning was the first time I'd be buying a newspaper," he said. "I just wanted to see what they say after all of the comments they said after the first leg. They said we didn't respect them. Not one of us, the players, the manager or anyone said a bad thing about them."
Samaras, who scored the second goal in his side's 3-0 victory on Wednesday, said: "We said they were a good team and we respected them, but they said things that were just not fair about our club. They said they were 70% through. They said we didn't respect them and they said our party was over.
"But, in the end, we proved who is the best team by playing football. We played football. They just talked.
"It's a big deal for everyone. For the club financially, for us as players with prestige. We didn't want to be like a firework; one year flashing and then just burnt out. We want to be there every year and we've done it again.
"I'm from Greece, but I want Scotland to be seen as doing well on European nights. It is about respect and showing people that Celtic are a big club from a good footballing country."