In a recent interview with Polygon, Robert Kirkman, the creator of comics like Invincible and The Walking Dead, discussed his ideal plans for future seasons of Amazon Prime's animated Invincible series, saying about seven-eight seasons could be "enough" to adapt the entire comic.But Kirkman followed up by saying he's "trying not to pin it down to a number," calling it, "a moving target." After all, Invincible's first season largely covered event…