Leinster head coach Leo Cullen says coach Nienaber is "fully committed" to the province who are "lucky to have" him.
The two-time World Cup winner with the Springboks had cast doubt on his Leinster future earlier in the week after claiming he does not feel valued by the media and fans in Ireland.
However, Cullen is hopeful he will remain as part of the coaching staff and that Nienaber's comments may have been misunderstood.
"I think what he was referring to is there are no guarantees in sport, is there?" Cullen said.
"So, I think what he is trying to get across, is that when there is a lot of flak on the team from media, sometimes a club will make changes, and I think that is what he was referring to.