The purpose of the lockdown isn't to hide until the virus magically disappears, it's to flatten the curve and allow the virus to spread slowly enough that it doesn't overwhelm the healthcare system in any given place.
Maintaining a lockdown will not lower the number of people who get the virus, it will merely extend how long it takes to get there.
At least if you heard the statements of my government (Italy) from a couple weeks ago, they were hoping (or so the press said) to "reduce infections to zero".
Since then, quite obviously, they backtracked from those statements.
Flattening the curve until there is a vaccine might be the right plan for a influenza pandemic. For COVID-19 we can go further: we can bring down infection rates so much that contact tracing becomes feasible again.
Matters where you are. The Bay Area is keeping their lockdown up so they can contact trace and crush any infection spike. Otherwise, we're going to be locked down until a vaccine at the current new case rates.
Maintaining a lockdown will not lower the number of people who get the virus, it will merely extend how long it takes to get there.