[Taqwus]

KODP did Hero Quests pretty well (and certain of them were extremely dangerous even for experienced Ring members who worshipped the appropriate deity, and even with full knowledge of how the HQ's supposed to work; the Uralda quest comes to mind). However, that was a completely different type of game featuring much more plot and backstory. In addition, having that level of detail makes it difficult to include many.

I'm not sure why a quest should be limited to national heroes (well, not explicitly; it should be difficult, and the difficulty may as a practical matter require heroic prowess or fortitude or what-not); one of the ways to become a hero, in fact, should be to do something amazing for the nation.

I could see National Heroes getting better abilities by default. For instance, it wouldn't seem remiss to me for all to receive some level of Standard ability by default. Some could use abilities that don't necessarily exist yet in game but would make sense in light of their description; Marius Lorca and his guards, if any, having a chance to intervene against assassination battles, for instance, or the Rage Lord generally having a retinue of Lava Warriors.