No one knows, they didn’t announce the last extension until a couple of days before hand last time. I don’t see why they would with everywhere open now and it becoming an endemic in Thailand from June
You asked this in another group this morning right? The answers there were correct, you don’t need to do anything else. This is the re-entry permit, its all you need. You can just return and you will be stamped in for the remainder of your extension. Insurance depends on the entry requirements at the time. Things change quickly. As it stands you will need insurance yes.