Who would be interested in a custom WotLK client/map editor?

I'm a careered C/C++ programmer, and I'm considering creating a WotLK client and/or tools for map/expansion creation for either my client or both. I'm curious to see what the community would be interested in, and any ideas from the community.

The client:
* Using original WoW content, but easily supplemented with new content created.
* Nearly photoidentical to WoW
* Open Source

The map editor/expansion development toolkit:
* Map creation/modification, specialized design.
* Auto-texturing tools for maps
* Mob/player design
* Quest design, mob placement, etc
* Dungeon/Raid/Mob scripting
* Other useful tools.

Would anyone be interested in designing new content, or using a new client to play the game that would be open source and easily modified?

Any suggestions are welcome.

Problem with this is, people in the past when they changed the map to one of the raids back on retail, the whole guild who did it was banned. So best not to do something like this.

It would be for server and client modification, not cheating. @romz

Warmane will not support server-side modification. That said, what purpose would client-side modification serve?

@Mercy I'm not even being specific to Warmane, but the general WoW private server community. I want to know if people would like the idea of custom content and even a custom client. A custom client would allow new features to the game beyond what content creation can directly create. For example, you could add a new panel, different talent systems, interesting server integration like in-game forums, etc, and that's just scratching the surface. I'd love to see creative new quest mechanisms.