Between the Tortollan pet, Silithus being changed and their Zandalari/Loa connections, Saurok kind of skyrocketed up the "potential new race" tier list for me. They would make a lot of sense to team up with Horde trolls.
Classes/Specs: Retribution Paladin, Outlaw Rogue, Frost Mage, Destruction Warlock.
Vanilla veteran of both factions since '04. Former high end player, now casually playing simply to keep up with the lore.
I think he is turning your bowser reference into a second reference about the legend of the Kappa. Kappa are usually depicted as having water around their head to signify their life force or whatever. I think some variations of the kappa have made it into a bowel of water around their head.