Angle, 45, currently works for TNA, but his contract is up this September. The former WWE superstar will be free to test the open market once his TNA contract expires, so he may very well wind up back in the WWE.
"I can't say when," Angle said of a return to the WWE. "My (TNA) contract is up in September and I've left my options open. I'm very happy in TNA. Dixie Carter has treated me very well and always been there for me. But, I can't lie to myself anymore. I can't lie to TNA or WWE. Yeah, there is that desire to go back.
"I just don't know when. It could be this year. It could be next year. I don't know when. It's not a bad thing to stay in TNA at all. I just have some unfinished business in WWE. Whether it's this year or three years from now."
Angle, a world-class wrestler who won an Olympic gold medal at the Atlanta Olympic Games in 1996, is one of the most popular wrestlers of all-time, both in TNA and the WWE.
During his interview, Angle also opened up about Hulk Hogan leaving TNA. He says it was a tough decision, but that it had to be done because it opened up resources to sign young, up-and-coming talent.
"Hulk Hogan's a good friend of mine. It was disappointing, but we had to make a company decision," Angle said. "It was, 'Do we keep Hulk Hogan on without the physicality of wrestling?' Because it seemed like Hogan wasn't going to wrestle anymore. And, 'Will he benefit the company?' I believe he was benefiting the company.
"I think that any amount of money he wanted was worth getting him, but the company at the same time had to make a business decision and decide if they wanted to keep him and pay him the big money or if they wanted to get rid of him and find some younger talent."
When will pro wrestling fans see Angle back in the WWE? Let us know in the comments or tweet the author, @EricHolden.