Wow, I'm surprised they closed Elk!
Not much to add from me but I was in Squamish Valley recently and none of those trails (High Falls, Crooked Falls) were roped off or anything - and it was actually very busy there! Now with the fire, access may be difficult.
Also, not really a hike but I was at Pitt Lake yesterday for sunrise and they just had some signs up about keeping your distance. No closure.