I remember reading an article about the Rhino story over the summer.
The writer's two-issue Rhino story will begin with the appearance of a new Rhino in town. "But rather than the tried-and-true 'wipe away the old character and replace him with some new guy we've never met and aren't invested in,' the old guy has a really good reason to come forward and fight to reclaim his mantle," the writer said. "And the reason isn't just comic book plottiness. There's actually a character-driven story behind it. So of course, these two Rhinos are fighting, and Spider-Man is in the middle of it, as happens in comic books. And you'll have to read the arc to see which Rhino is left standing."
It seems to me that the purpose of the story is to show that the Classics own and you can't just replace them with at the drop of the hat with a newer, Xtreme version. So if that's the case, you guys have nothing to worry about.
Also, new time user, long time reader, thought I finally join the community. (Venom 1988 on SHH!) =D