I just got off the phone with the Detroit Ranger Station. The basin is still under plenty of snow and some of the lakes are still iced over. The Duffy Lake trail head just became accessible this week, the whole trail is still under snow. This is just what I was told.
I'd be all about it if the trails had diamond blazes on the trees for hiking in the snow, but they don't. And I don't feel like wandering off trail in the snow.
I'm going to head up to Hood and hike Badger Creek to Badger lake. That is snow free for the first seven miles (12 miles total), and the road to Badger Lake is still under several feet of snow so there shouldn't be many (if any) people at the lake.