2 month free trail period over, what happens to my list? Is it in never-never land?

If I sign up for the 1 yr. subscription, do I need to redo my collection list that I had done 2 months prior? Or is it saved, and will I have access to that data again once I pay for the service? Or do I have to input it again? It's a new/different collection, so I don't want to confuse it with my main account collection. In the future, will I receive a reminder email to re-up my subscription in time before it cancels out?

If you sign on for the Premium Sub, as expected, all previously entered data is retained.
If you have multiple accounts, those are multiple everything - collections, salelists, account types.
3rd question

Any subscriptions are auto-renewed by PayPal until you sign in to PayPal and
cancel the service. If you are late, PayPal will nudge you. After a certain number of reminders,
and no payment, PayPal signals our database to cancel the subscription automatically.

Hope that answers the questions!

Yes it does Starman.