1) Where do you get the idea that Runaways don't want to be heroes? Entire vol.2 is about how they not only want but feel they need to be heroes to undo evil caused by their parents. They go and pick fights with villains on their own in vol.2 AND vol.3 all the time. Where is that idea coming from?
2) Dormant property is one good story from being golden again. And Runaways are kind of property where fandom could be satisfied with getting them rarerly, but in good stuff. Quality over quantity - if we wanted to follow characters who are in a book every month, even is faid book isn't worth anything, we would follow Wolverine.
And Arena/Undercover dragged down Runaways in other way that you think. Many fans are geniuquely afraid that after that Nico and Chase are beyong salvaging or repair. Too many elements of their characters have been removed and replaced, be it their character traits (Nico's compassion) or abilities (Chase's bound with Old Lace) or limitations (Nico's magic), even Nico's motherly relationship with Molly was destroyed. Most of the appeal these characters had to the fans AND the writers have been eradicated and replaced with boring and generic. Especially Nico, who right now became just a thousanth shitty Raven clone with lame 90s hand when before she was distinctive character on her own. We fear that once Hopeless is done, the characters we love might nto just be dead, they might be changed to the point that what we loved no longer exists and it's just two other, much less interesting people, wearing their faces and names. And while yes, a good writer might fix this and quite easily (personally I'm all for Tempus Fugit 2 solution someone proposed
here) but first a writer willing to do it needs to show up. And with the state these characters are right now said writer might never do so, because whatever story potential they once had is now gone and nobody is going to waste their time fixing Dennis' Hopeless mess.