Is there going be a wolf quest 3?

There is no "WolfQuest 3" in development at the time of writing.

This is simply a rumour called Midnight Pass that was a video on YouTube with some werewolf-like characters from Warcraft, I believe.

For details, please refer to the link below, which contains an official response from an official WolfQuest Team Member, Cana (WQ Coordinator) with details on the subject. For further clarification, WolfQuest is based in/around the Yellowstone National Park area; episodes' names are the focus of a specific area. Amethyst Mountain and Slough Creek are both real areas of Yellowstone National Park; "Midnight Pass" is an invented name that doesn't exist in Yellowstone.

The evidence resides in Cana's previously-mentioned post.

Cheers! ^^