Since March 22, it has now been confirmed that at least the shiny Magikarp and Gyarados have been introduced in game.
If a Pokémon is shiny, would it appear as shiny on the map, or is it required to launch the battle to see if the Pokémon is a shiny one?
Best Answer
A shiny Pokémon won't appear as shiny on the map, and will just keep its normal colors. So you do have to launch any battle to check if the Pokémon is a shiny one or not.
As confirmed in this article:
It is also confirmed by some users in this Sylph Road Reddit thread:
Or: