It's been over a week and a bit since greater Sydney and surrounds were put into lockdown to battle the Delta outbreak which started three weeks ago.

While case numbers haven't soared over the last two weeks, they haven't dramatically reduced either. And there are still people testing positive without being in isolation.

Today, NSW Premier Gladys Berejiklian is expected to provide more information as to what happens next in the city. Will lockdowns be lifted, or will it continue?

So on today's Coronacast, what might happen?

Also on today's show:

* A new variant to keep an eye on: Lambda.

* I have an 11 year old child who may be eligible for vaccine next year. How safe are the vaccines for children aged 12?