It does seem like the Forsee Creek Trail would be the logical trail to mitigate first. It lies well west of the heaviest burning which occurred around Grinnell Mountain.
The San Bernardino Peak Divide Trail from the saddle west of Anderson Peak to Dollar Lake Saddle might also be a good candidate for early mitigation.
However, Trail Fork Springs could be opened as is, without any hazard mitigation. There just wasn’t any burning there. While I hope the entire Wilderness will reopen quickly, I think a little fine tuning of the rather blunt instrument that the closure now is would be in order.