Neither Kerevi or Kuridrani will line up for their NRC sides this weekend, which leaves them next-to-no chance to travel to Japan to face the All Blacks.
But it's understood Kerevi, in particular, remains a chance to link up with the Wallabies in Wales a week later.
The star Reds centre, who has had a four-month layoff due to surgery on a ruptured biceps suffered in June, said last week he is hopeful of making a return for Brisbane City if they qualify to play finals football in the NRC.
The Queensland side face a must-win clash with Canberra Vikings on Sunday.