Are you talking about this creek that flows out of Jackfish lake?
It is possible to travel through there but you'll be hard pressed to find someone with a current report on water levels. Sounds like the portage from Wednesday Bay to Wabosons is frequented more often then the creek/portages from Wabosons to Thursday Bay which might be a total bushwhack. I bet it would have floated a canoe when water levels were high this May. Personally, I don't think it would be worth trying this late in the year. There has been discussion of this on this site, you'll want to search for Jackfish Lake, Wabosons Lake or Tick Lake PMA. That route falls inside of the Tick Lake PMA so the portages are not actively managed and you'll need a secondary PMA permit to camp on Wabosons or Jackfish.
PMA Paradise thread