So... submitted a claim for a single condition in March 2017, VAC had all required documents in June 2017. Called yesterday, was told their current service standard for a single condition claim was July 2017. In other words, the oldest applications they are working on are complete (all required documents received) from July 2017, one month past mine. The agent said she would "elevate" my file to her supervisor for additional information... and that's all she would say, she had no other info than call back in a week.
At this point I'm considering it a lost cause in the short term. I'm going to call back next week and see what, if anything, has been updated. The wait time tool states 54 weeks, being over 80 weeks at this point, I'm not expecting anything for months, at best. After next week I'll let it ride for a few months.
I'm guessing with the changes as of April 2018, VAC who was already overworked and apparently changing "claims systems", is now completely overwhelmed.