Isn't that the next one regardless, just when it is depends on how you write dates?
you can write dates however you want to, it's just a made up notation. It would not be difficult to come up with way of writing dates which is almost always a palindrome.
And, if you write your dates that way, what will the one after that be? 30100103?
In a thousand years, we might be on yet another calendar system.
I think we already are using another calendar system! Most used dates in existence are probably using Unix time, at least I know I only check the calendar a few times a day but I have systems running checking it multiple times per second.