That screen with artifact system is new and not presented anywhere yet except DF2 forum

Well, yeah, I don't mind anyway to call it gameplay mod (since it's also true) because it's good for people to have simple tags.

It will be still Era-based and 100% compatible with Era. We don't have time and desire to create a fully standalone platform.

Instead, the mod will become self-installable both over the clean Heroes and Heroes with ERA. So that people who have Era will be automatically able to use the mod as portable and use ERA Mod Manager to enable minimods over. So that I don't see a problem for the mod to be featured on the website, because all it will do except installing the portable mod in the Mods folder is creating new EXEs for the "clean mod" and "clean editor", with some independent data files.