How's the snow pack looking so far this year? I'm planning on hitting up Glacier Lake late April / early May. Expectation is that there will likely be a moderate amount of hard pack snow at the higher elevation along trail with the lake being mostly snowfree.
I'd say overall average or slightly below average winter snowpack. Recent dump deposited 10-20 cm but it started melting. Typical early spring conditions.
As for Glacier Lake your guess is probably good. I'd expect trail to be dry with section of mud and snow patches on that forested hill before you start descent to the lake. Gaiters only gear needed