Is this actually at all feasible? The total amount of storage space used by the Pokémon wiki is hundreds of times larger than the original game, likely requiring many times more effort to write than spent by the original programmers, and it still doesn't cover many, many aspects of that game (e.g. that Pokémon is tile-based; what buttons do in various contexts; sound and visual UI design) -- to say nothing of the clever ASM and memory tricks necessary to make the game work on the Game Boy.
I'm reminded of that comic where the punchline is "do you know the industry term for a specification precise enough to generate a program? Code. It's called code."