Back in the early days of the Pokemon series, fans commonly expected to see evolved and pre-evolved forms of new Pokemon whenever a new generation came out. Indeed, during the first decade of the franchise’s lifespan, the generations following Red and Blue contributed to the expansion of preexisting evolutionary lines. Gen 3 only added two pre-evolutions, while Gen 4 followed in Gen 2’s footsteps and added countless new forms. This trend would mostly end by the fifth generation, although Pokemon still found a way to include new evolutions. The series reintroduced the old practice through regional forms, and continues to do so through its most recent game.