I'm sure they will open the lower Fraser soon but not the upper.
It's possible but once again, I wouldn't count on it until the late run sockeye get through. Those fall run fish don't spawn until October so if they are worried at all about the Cultus L. and Weaver Cr. numbers it might not happen....then there's the Lower Adams, Seaton, and Little Suswap River runs, all october spawning fish, that still need to get through in decent number that ACTUALLY make it to the spawning stage.
The problem is a lot of these fish from these systems, for some reason still unknown to a great extent, are coming into the river FAR TOO SOON and die before they even get to spawn. The warm water certainly doesn't help either. They used to stage at the mouth of the Fraser before making their final run up the river. They're dying because they are in fresh water TOO LONG waiting to spawn....if they get that far! They can only live so long once the parasite that all sockeye get called parvicapsula as soon as they enter fresh water, It gets into their kidney and to some extent into their gills and kills them prespawn.
If the fish came in at the proper time the parasite problem wouldn't be an issue. DFO is trying to protect those fish that are coming in as we speak which is closer to the correct time for entering the Fraser.