Yah, I have what I need to swap out anything licensed. I know that is the easier road. Creating material is not an issue as world-building has never been a weak issue for me.
The desire to share with others something that is familiar with them (and that has the imprimatur from the Licensing Powers That Be) yet different enough to not be a forced-canon (alternate, near-future, c. 2100) to have fellow enthusiasts of the game, go, "Wait! I recognize that reference!" would be great. However, I just want to write a story. I don't want to be bogged down in the trenches with trying to develop a sideline setting or acting as a game developer in any capacity. Those guys are tops. The ability to write a story AND set it up for general play? No, my limitations are simply understanding story structure, creating compelling characters, and entertaining. Sure, GM-ing games for three decades and I have created more than my share of stories, but nothing I would want to write a 32-, 64-, or 96-page sourcebook or module or adventure path about. Now, if it were something that were popular enough to be picked up by the devs for transformation into a game play experience, wonderful! That is not my forte, though.
Even without any licensing allowances, a fully ground-up creative work still owes to the muses that gave it life. To that end, HERO Games (and some of its past luminaries in particular) will be given credit on the dedications page. Though I have not played HERO/CHAMPIONS recently (3 years or so), my time well-spent is what brought forth many great ideas that would not have been possible without the RP system to have given us a sounding board for story ideas and working things out. It created the means of structuring a universe with verisimilitude despite its fantastic elements that helped act as a "laboratory" instead of just "eyeballing" with a story created and shot forth from the hip.