No Export for You: Barely avoided. Despite being a spinoff of a manga that for a time was the #1 manga in the USA, it took nearly 2 years after the anime's original run for a dub of the original series to be announced and aired stateside.
The Other Darrin: The dub is non-union (in contrast to the main series dub), so several characters had a voice actor change.
Recursive Adaptation: Mild example. A special chapter for Saikyo Jump was based off of Episode 5A from the anime. Which means that it was a manga chapter based on an episode of an anime adapted from a manga...