Yeah, once a character becomes high enough profile, it's harder to replace them.
Barry is ironically a legacy character himself, but he was more popular than Garrick, so yeah, really unlikely for Miles to replace Peter for good, we can have alternate universes like Ultimate and Spider-Verse's movie for that to happen though, just unlikely for Peter to be killed off and Miles be seen as his definite replacement like it happened with Barry and Wally to begin with, much less that decision being permanent.
Makes sense, though it is kinda funny how Marvel doesn't use him as much to hype up sales from stuff that has him, even when he's just there on the background, not that I'm complaining, him getting too much spotlight would suck, and it's bad enough he may show up in a cover and have little relevance in the story itself.Suppose they don't need to push him that much, since he's already at the top as is?
Well, he brought back Hal, made fun stories, expanded the Green Lantern's world (And while making different colored corps is rather predictable, making it work with interesting characters is another story), so this is where the "Great" comes from, the thing is that he kept pushing Hal to look that aweome, while screwing up other Green Lanterns, which made the fans of those characters get sick of it, and I bet there are even Hal fans who think he does it too much.(Funny, I thought Johns was considered one of the great Lantern writers, but all I hear about lately is how he was too much of a Hal fanboy.)
Yeah, I don't really remember how it happened exactly, but Henshaw showed up being a threat, and while Hal was around, he didn't take over the plot, then like one issue before the last one we got this focus on Henshaw and Hal's personal story, but it wasn't the major focus and Jessica and Simon were helping to defeat some other enemies (I think Simon found alien guns for that), and then the last issue is basically "Hal and some other random Green Lanterns vs Cyborg Superman", yeah... While it could be okay for a crossover story, to end with that, this was Jessica's and Simon's comic and it was completely ridiculous that Hal took over it, specially since it was the last damn issue, and the last pages were just to explain why Jessica is in that other Justice League (Odissey I think?), so yeah, that was a bad way to end it.WTF?! I get that Hal will always be Lantern numero uno because he was the first and all that, but hijacking other characters' series? (Need to finish the GLs series, but man, was I hoping for something more satisfying then Simon and Jessica getting shafted in their swan song.