That's kind of my point is that they wouldn't use a countdown of the first 151 to announce a new gen. It would be ridiculously long and again would only be one gen. They would need something that happens far sooner and that could be done if they did all starter evolutions only. But we don't know where rhis thing is going until Wednesday.Does it really make that much more sense to have a countdown for 151 Pokemon to reveal a new generation? It'd be like using one specific old car to promote a new one, while skipping over the six other old cars that were released in between the two.
Something else to consider with this countdown is that it's not being posted anywhere besides twitter. But with Pokemon social media, they usually crosspost big news. Look at what they did with the new Detective Pikachu trailer, for example, or the Detective Pikachu TCG sets:
View: https://www.instagram.com/p/Bs34ithlevY/Exact same posts across Facebook, Twitter, and Instagram.View: https://twitter.com/Pokemon/status/1085907840575844355
Pokémon on Instagram: “You won’t need a detective to help you find these new #PokemonTCG collections, apparel, and toys based on the upcoming #DetectivePikachu…”
For that matter, while their Instagram skipped over it, a new TCG set was also announced on both Facebook and Twitter.
Now, as excited as I am for Detective Pikachu, and as much as I love the TCG, I'm pretty sure the Gen 8 games would be a bigger deal than both of them. So if this is counting down to an announcement, why are they only posting it on one page?
My other point is that even if this wasn't a direct count down to a new gen, indirectly it is because you wouldn't sit here spamming old gen facts and distracting us away from the new gen. So either way, until this thing is over we won't see any news of a new gen.