Yep. The new floor for the OSB mills will be $500-600 per MSF (1,000 square feet for the non industry folks) is my guess. That is $16-$20 per sheet wholesale before freight. Any less than that and they will curtail production.
With that said, box stores like Lowe's and Home Depot could dump some wood this summer. I imagine they beefed up their contracts over the last 2 years and the first thing I see dying in the construction world is DIY. I imagine everyone is tired of home projects and will travel as much as possible this summer. No time and money left for working around the house.
Final thing to watch is hurricane season. You want to see OSB go nuts again, wait until a hurricane starts barreling towards S Fla or Houston. Everyone in the industry will buy a years worth of OSB in a week thinking they won't be able to get it if the storm is bad.
Overall, I think we set a new floor for OSB that translates to the $20-$30 range per sheet of 7/16 OSB at the box stores.
Hopefully DawgsAndSaints (I think that's his handle) jumps into the conversation. Pretty sure he's at a southern plywood mill. I'll be interested to hear his thoughts.