Richard,
Really enjoyed your photo gallery. You covered many miles through trophy locations.
Last year, while heading up from LeConte Canyon to Bishop Pass, I noticed a significant trail reroute in Dusy Basin. The CCC workers told me they were rerouting the trail to nearby higher ground, as the existing trail passed through an extensive march-like area. This year I passed along the "new trail" and peered down on the old muddy trail (which will likely vanish in short order).
Maybe there are similar concerns for the JMT at Wanda Lake. The trail is not easy to follow just below the outlet due to water often flooding this level area. Also, in early season much of the trail hugging the shore just above the outlet is at best muddy. More problematic is when snow lingers there, it which case one must be concerned about ending up in the lake. Possibly, there is a reroute planned in this area.
BTW, I believe that Laura Pilewski (Rob's wife) once worked as a SEKI botanist. By any chance, was the botanist you talked to Laura?
Jim