Thank you for making that point, I edited my post to say "at least three heavens" because you're right--when Paul describes the Third Heaven, it does not mean that there are ONLY three heavens, but it is necessarily true that there are at least three in order for his statement to be true.

We know from Revelation that the cosmos, in its current form, is not God's only creation. The New Creation or Eternal Kingdom, also known as the New Jerusalem, is coming. The New Creation is promised as the fulfillment, culmination, and perfection of all the created order (which I discuss to some extent in the video--hope you will watch and share)!