Nothing bad...
If you have purchased a RadarOpus (or a payable update) more than 12 months before the release of a new payable update and you decide not to purchase the new one, this is ok with us!
It simply means that your RadarOpus will continue working with the
operating systems that were available and compatible at the time of your
purchase. You will also no longer get free support and access to regular free
provings and data (like themes).