Ash Can Copy: The famous #0 issue is technically a prototype of the ILR's invasion to Derzon, but without named characters (or Erma included) and a short history named "Bad Rubber" who is a furry parody of Blade Runner.
Author Existence Failure: Or more precisely, Author's Wife Existence Failure since the author cancelled the comic for good after his wife died of cancer. However, since joining FurAffinity recently, he's been so flattered by the effusive praise he's gotten that he's giving the idea of reviving the series some thought.
What Could Have Been: In the case you didn't get the rant the author does in the first issue of the Shanda Fantasy Arts version of the comic at the end of it in 2004, here's the whole story: SFA originally planned to write a crossover between Albedo with Katmandu, one of their main franchises, who was also planned as an "ending" of sorts for Albedo, without Steven Gallacci's permission. That crossover planned to do the following: Solving all the remaining loose ties regarding with the Creators, giving Tavas Ikalik the punishment he deserved for letting the ILR bomb Erma's homeworld and killing her boyfriend, giving Erma another lover, who was an human being and creating another, unrelated enemy, named the Zorion Empire, an empire made of human cyborgs who are using the technology from the Creators from the past, who are trying to conquest both the ILR, Enchawah, EDF and the Katmandu's home planet. Needless to say, Gallacci was pissed off of this, since the whole idea clashed with many aspect of the established canon, but rather than sue them, he decided to continuing to comic after a long hiatus, and included a short rant comic as a big Take That against SFA and also against anybody who tries to mess with the canon of the comic by other means.
Regarding Birthright, originally Gallacci planned to finish the story in a Kill 'em All situation at the end of the first arc of the story, but he changed his mind.
Also, according with an interview he did in the 80s and also in the prototype issue, Gallacci planned to include Mobile Suit-like giant robots, but decided no to include them due to being too unrealistic for the setting. Oddly enough, the prototype mecha looked like a furry-shaped version of the original RX-78-2 Gundam.