Originally Posted by Seerah
4. It is also quite possible that you have not seen anything like your idea because it is not possible to accomplish. Again, we can't help you out with places to look for help, advice on how to code, etc, etc, if we don't know what you're trying to do.  |
This, especially. WoW has been out for a long time, and chances are anything that could see large scale success, like QuestHelper or Carbonite, has already been created. There are smaller innovations every now and then which really do make you wonder why no one thought of them before (I'm looking at you, VirtualPlates) but for the most part everything that doesn't fill a very tiny niche or is not possible has already been made.
This is, of course, not to say that there is no chance that your idea will be a great one.
In regards to revenue, you can go ahead and look at some hugely successful addons and see only meager donations. That is the only revenue you may make, and it certainly doesn't add up to the dev hours clocked to create such an addon.