Given that we were able to process new hires around 120 a month, and recalls will require less training than that (Redoc vs Indoc, RQ3 etc.), I would speculate that the pace of economic recovery would be more limiting than TK throughput.

absent a mass produced vaccine, and/or eventual herd immunity with no chance of mutation/New strains, The economic fallout and lack of global consensus will prevent a V-shaped curve.

One (totally unqualified) person‘s opinion