Ideal % of Gen 1 spawns and hatches in Gen 2' "era"?

Considering the current # of spots, nests, spawns, etc., I'd say the ideal ratio of spawns/hatches of Gen 1 Pokémons from now on would be 25-35%.

What do you think?

I'm so happy and hyped for the Gen 2 release, but I still need Charizard, Tangela and Dragonite to complete my European Gen 1 Dex, so yeah, that would seem the fair ratio of Gens 1 & 2 for all the people like me, which are probably the vast majority of players.