Talking to Himself: around 80% of all of the characters are voiced by Lorne Lanning, the co-founder of Oddworld Inhabitants
What Could Have Been: Munch's Oddysee was going to be a MUCH bigger game, but limited time and not advanced enough technology prevented it from being so. This isn't even getting into the canceled games like Slig Storm and Hand of Odd.
The post for Debut Queue and Always Chaotic Evil imply that either Abe's Exoddus and the cancelled fifth game were meant to be about Squeek and Nod, or that Sligstorm was meant to close the franchise.