According to the designers, making an Xbox Live Arcade game isn't much different than developing for WOTLK Classic Gold traditional platforms.While designing the newest version, Hector and Alex had been showing the prototypes around, gaining lots of interest from different parties.
Microsoft extended an offer to put WOTLK Classic onto Xbox 360 live. At first we were skeptical--a 50MB limit might hold the game back from reaching where we wanted it to be. At the same time, the game was so out there, and the company was so new, that this was our best chance to get the game out to the people. Let me say this in bold: God bless Live Arcade. Without it, the chances of launching such an absurd game would be incredibly slim.
Designing a game for Live Arcade is not much different from designing for any other platform. Ultimately there are going to be unique strengths, weaknesses, and limitations for each platform, but those considerations rarely affect the core design in critical ways.
From the start, WOTLK Classic was designed for a standard console joypad, so there were very few control changes to be made in moving the design over to the 360. Microsoft has created a lot of common tools for developers to use--they've taken the legwork out of buy WOW WOTLK Classic Gold things like leaderboards.