Birmingham midfielder Charlee Adams has signed a new one-year contract with the club.
Southampton are confident Jay Rodriguez will commit to a new long-term deal but the player will consider his options.
Marco Futacs insists he would be happy to stay at Portsmouth despite their relegation to League One.
The Hungarian striker scored five goals in 29 appearances since moving to Fratton Park last summer but could not prevent Michael Appleton's side dropping out of the Championship.
"In terms of staying here next season, we will see what happens in the future," Futacs told the club's official website.
"I have talked to the gaffer and for me, as a young player, it is important to play and get as many minutes on the pitch as possible. This club has a huge history and I would be very happy to stay."