It had previously been reported that the 2005 Lion would be shown the door at the big-spending French club following the incident but they have instead handed him a surprise reprieve.
Henson today rejoined the Toulon squad following his weeklong suspension and will be in contention to play against Montpellier on Sunday.
"This morning, club president Mourad Boudjellal and the staff of Rugby Club Toulonnais decided to reintegrate Welsh centre Gavin Henson in the team," said a statement on the club's website.
"Gavin Henson therefore remains at the disposition of the squad in his capacity as a medical wildcard for Clement Marienval.''
Henson joined Toulon for on a five-month contract to cover for the injured Marienval, hoping to convince head coach Philippe Saint-Andre to hand him a longer-term deal, and book a ticket to the World Cup with Wales.
He last played for Wales in the 2009 RBS 6 Nations before taking unpaid leave from the Ospreys. But he ended his 18-month sabbatical in October 2010 by signing with Saracens.
However his stay was a short one and he left the Aviva Premiership out-fit after just four months and four appearances.
The 29-year-old joined Toulon was initially hampered by a hamstring injury upon his arrival in France. Henson made a try-scoring debut against Stade Francais and made his second start in another victory over Toulouse before being involved in the alleged fracas.