It'd be cool if they made you earn them by completing a certain number challenge battles or something of that nature. Just my opinion. For example, there could be a stadium in which you battled it out against trainers who used pokemon specific to each prior generation, and a gym leader of sorts at the end of each challenge group. For each successful generation challenge completion you'd earn a pokemon of your choice.
It'd give us veterans a sense of nostalgia while providing new/younger players with an appreciation and somewhat of an understanding of Pokemon's history.
It'd give us veterans a sense of nostalgia while providing new/younger players with an appreciation and somewhat of an understanding of Pokemon's history.