This just in.....IETF announces IPv7
Oh, it will be compatible with IPv4 as a subset. It adds a byte in the middle, so 127.3.2.1 becomes 127.0.3.2.1 if routed. Lots more addresses only TWO more bytes in the header. Easy for things to translate as needed. Oh, 256 times more addresses. Sorry not enough for every grain of sand on earth, but it should last a few years.
Well, we can always hope. Wishful thinking.