I just don't see a "second" lockdown coming. The smart strategy would be to isolate and quarantine the elderly and those with compromised immune systems in lieu of locking down an entire population and crippling an economy.
The death rate for people testing positive for COVID without serious underlying health conditions is something like three tenths of one percent as I recall.
CDC saying below 0.3% from your link that's everyone, 90% of those will be aged 70+, looking more like 0.1% although NYC closer to 0.2%.
As said in above, it's most killing people that are already dying soon.
Logic didn't stop them locking down the first time, the Public's fear trumps all sadly and that's all they should of done the first time around ( lockdown for Ill health only )