You can check it in Billing & Subscription menu.
Afaik, I have to find yet any such announcement. For the time being, consider to utilize this 3rd party tool to migrate your data between QBO accounts.
Once you are ready to proceed, open a new QBO account with discounted price for up to 6 months.
If you are able to run this process once, you may repeat it for every semester to minimize your cost.