Well, the legendaries in the Pokémon games have been escalating in "power" with each generation... first the weather, then the sun and the moon, then the earth and the sea, now time and space?
The question is - where can we go from here? Do you think that Game Freak will try and get even more powerful with legendaries? If so, what is more powerful than time and space?
Or maybe they won't try and trump the last games. Perhaps they'll settle for some other aspect of legendary Pokémon.
What do you think?