The talented 20-year-old Bucs product has excelled for both club and country since making his top-flight debut last season.
Mbokazi made 19 appearances last term and has captained Pirates in nine of the 11 games he has played in all competitions this season, alongside three South Africa caps.
He is is part of the 23-man squad set to face Zimbabwe and Rwanda in Bafana's crucial upcoming World Cup qualifiers.
After announcing his team, Broos said on SABC Sport: "If you see the quality and the talent of Mbokazi, I'm very sorry to Pirates but this guy has to go away next year.
"He will become better when he plays good competition and in a higher level. If he stays here, it will become too easy for him because he's good.
"He needs another motivation, another challenge. That makes him to become better."
Broos added that Mbokazi is not the only national player good enough to compete at the highest level.
"There are other players who can make the [next] also [and move abroad]," he explained.
Orlando Pirates coach Abdeslam Ouaddou has warned his side not to get ahead of themselves as they prepare to face Richards Bay in the Carling Knockout semi-finals.
Mamelodi Sundowns coach Miguel Cardoso has praised Sphelele Mkhulise's influence and professionalism, describing the midfielder as a player who represents the very identity of the club.
Orlando Pirates head coach Abdeslam Ouaddou hailed the collective unity within his squad after the Buccaneers returned to winning ways with a 3-1 victory over Golden Arrows in a Betway Premiership clash on Wednesday night.
Orlando Pirates defeated Golden Arrows 3-1 at the Orlando Stadium to record their seventh consecutive win of the 2025/26 Betway Premiership season.
