Widescreen hack possible? Any volunteers?

The main things to change that I can think of are the following:

1) Render the tilemap outside the regular screen size (same for overworld maps and Airship mode)
2) Manage NPC movements outside the regular screen size
3) Change some maps tilemap that would look quite ugly on widescreen (Narshe in mind as an example)
4) Adapt main menus to widescreen

It's possible to do these things I think if I understand correctly how widescreen hacks work, but it's probably a huge project to tackle..