Hello, i dont know where and how to contact blizzard about a game idea that i have. I have consulted my idea with a lot of people who also play wow and they all say it will be awesome if they can try it in reality. So dear blizzard if you are interested in a way to get back the players that you are loosing contact me i am eager to help.
In case of any new ideas for the World of Warcraft game, you can post them on the game forum if you would wish to discuss them with other players. You may also pass them more directly to the World of Warcraft team, within the game menu (Esc → Support → Submit feedback or bug report ->Submit a Suggestion) .