Scripts will still have a purpose. For example, someone could make a script that "recreates" the old forums (to some extent) by limiting your tags (optional) and showing the old forum's tag views as the forum itself.
Coup will likely still exist if it adapts to the new site, since we still have avatars. The dynamic scrolling, etc. might be the only setback to scripting here. It's been so long that I can't remember whether or not you can handle that via a script.
EDIT: Script [b]Central[/b] (the thread) probably isn't necessary, though, since there could be a #Scripts tag (in fact, you're already using it).
We should probably create a more general hashtag for all tools and tweaks for Bungie.net since we have the chance to create an entire forum for people creations. That way we can create threads for each tool/script rather than have 1 single thread with all the scripts in it (e.g. like script central before).