So Eternatus was number 890 in the national dex when SWOOSHIE released. As of Isle of Armor, the number now hits 893 thanks to Kubfu, Urshifu and Zarude. With Crown Tundra, we know of Calyrex, Regieleki and Regidrago, and datamining has found evidence of two more new legendaries that can fuse with Calyrex, so the number will hit 898. If we get two more mythicals in gen 8 (to match gens 6 and 7 which both had three) then we’ll be at exactly 900 at the end of gen 8.

Knowing this, do you think it’s realistic to hit 1000 in gen 9? The exact amount of new Pokemon added in the last two gens seems very deliberate imo.