The 2004 Olympian suffered a TKO defeat in round six to his arch-rival at the AO Arena in Manchester.
The defeat was the sixth loss of his professional career. Khan - who looked a shadow of his former self - hinted that retirement was on the cards after the fight.
However, in recent weeks there has been talk of Khan triggering his rematch clause to fight Brook again.
Eddie Hearn revealed Brook was on his shortlist to face Conor Benn this year but Khan himself had blocked the fight, asking for a fee to step aside and allow the domestic clash to happen - something Hearn declined.
Ahead of his latest show this weekend at Wembley Arena - which includes cruiserweight Richard Riakporhe - Shalmon informed iFLTV that we had not seen the last of Khan.
"He's definitely not going to stop fighting regardless of what we do," Shalom said. "Amir Khan is convinced that he had an injury - he had 10 weeks to prepare versus six months. He was in a new environment, he feels that he made a lot of mistakes.
"He was very gracious in defeat on the night and Kell was probably just the bigger and stronger guy. It did look bleak in there for Amir but I can't control what he does but he is not finished yet and whether that's with me or another promoter I don't know it's up to him but he wants to fight on.
"I don't think it'll be against Kell Brook next. I don't think so straight away but he's not going to stop fighting from what I hear. I do speak to him and his team. Fair play, as I say I don't feel comfortable commenting on whether he should retire or not.
"He's a fighter and he knows himself. I'm sure he will speak when the time is right but right now that's all I have to say on it," added Shalom.