That was my understanding/expectation as well.

I spent a fairly long time on the phone with support this morning and was told otherwise. My firm purchased unlimited eSignatures for Calendar Year 2021 (for ProSeries 2020), but when I try to request an eSignature it says that our "account does not have enough balance to send eSignature request." Based on my conversation with support this morning, we should not expect those signatures to come available until e-filing with the IRS opens up.