So I've been getting a lot of message about "Niantic putting Team Harmony in Poémon GO" and I'd like to make things clear for everyone :)
There are a lot of articles running around the internet right now about Niantic putting my Team Harmony in the game because of the legendary pokémon addition (including Lugia). However, Niantic's officials never said they were putting Team Harmony in the game. They once were interviewed and got asked for their opinion about a 4th Team and said they were "open to the idea", but never said they would add or use Team harmony.
You need to understand that all of these rumors are FAN-MADE THEORIES, not official statements. You should only believe what Niantic's official websites/pages say. Anybody on internet can write an article on unfounded information and then spread rumors that are not actually true. So please always check your sources before assuming :)
I wasn't approached by Niantic nor Nintendo about the use of my Team Harmony design, and to avoid legal actions I highly doubt they would use my logo for their game unless permission was given from me to use my artworks. So legally they cannot use mine. I would definitely be open to the idea of letting them use Team Harmony as an official team for the game, however I'd like to be asked by the devs themselves.
What's most likely going to happen here is Niantic will make a 4th team, but it will be their own original one and not mine. I am all for people making their own version of a Team Lugia or Harmony (after all I do not own Lugia itself, and as long as it's not copying/tracing mine I'm pretty ok with it ^^ (but I do have rights over the team image I've created)) so if Niantic was to make a Team Lugia I think it would be awesome! They might also make a 4th team with another Pokémon (which would be a little weird in my opinion considering the link between Lugia, Articuno, Moltres and Zapdos) but I still see it as a possibility.
So TL;DR: Pokémon GO is NOT using my Team Harmony in the game. These are fan-made theories and not actual, confirmed, official facts.