We saw in November and December that demand returned very quickly. Of course the snap border closures just prior to Christmas have had an adverse impact on sentiment with people concerned they’ll be locked out of their state with only hours notice. Those sorts of things are still within what FWA have said are legit reasons for stand down.
Internationally a post vaccine world with open borders is a very different context to what is occurring domestically at the moment.
As an aside I think the forecast is for all 737 crew to be stood up by about April/ May? (Dependent on state borders remaining open of course). Not sure. Missed that webinar earlier in the week.