The rut will still be on during the week you have booked. Rut activity during the last two years has continued into the latter part of October. I would not worry about that whatsoever.
Also, temperatures will be more favourable into the middle of October.
Enjoy your visit to our beautiful province.
I live in Newfoundland. Hunted 3 days this year and seen 13 moose. Numbers aren’t down. A good guide will put you on the animal you are looking for. Best of luck and enjoy your time in our beautiful province.