The Magpies signed Loic Remy earlier this week, while they have been linked with a move for Bafetimbi Gomis, and Ameobi has admitted that he will 'see what's out there' should he fall down the pecking order at the club.
The 31-year-old told Sky Sports News: "This year is a big year for me. I am in the final year of my contract and I have got the World Cup at the end of the year as well, so it is important that I put myself physically in the best shape I can.
"For Newcastle, I always give 100% like I always have and if I am here, that is what will happen.
"If they bring in strikers I might have to see what else is out there because I need to be playing football - that is really important for me this year."
Ameobi has scored 76 goals in 368 appearances for Newcastle.