Pietersen's future has been under the spotlight during England's recent 5-0 Ashes series thrashing in Australia, with the 33-year-old star batsman managing a total of only 294 runs in the five tests at an average of under 30.
The 33-year-old former England captain has also been struggling with a long-term knee injury but on Monday reiterated his desire to get to 10,000 Test runs -- he currently has 8,181 runs -- and said he wanted to play in the next Ashes series in England in 2015.
"I want to thank all the England fans for their terrific support. And I'm determined to help regain the Ashes in 2015."
Pietersen, despite his modest tally, was England's leading run-scorer during the Ashes and was one of several players who came under fire from England great Geoffrey Boycott.
But former England captain Michael Vaughan, Pietersen's first Test skipper and a team-mate in the 2005 Ashes-winning side, said it was vital he wasn't held solely responsible for this whitewash by Australia.