The Northern Irishman could secure the double with victory over Hibernian at Hampden on 26 May but Lennon claims there are no certainties regarding his own employment.
When asked about his own plans, Lennon told the BBC: "I don't know.
"I've got magnificent support from chief executive Peter Lawwell and the board, I've got a great club here and a great group of young players.
"But you just don't know what's around the corner and what challenges lie ahead for you, not just in your professional life, but in your personal life as well.
"So we'll take stock of everything after the Cup final, have a sit down and see what we do for next year."