When the final battle between Homeworld and Crystal Gems comes Ronaldo pretty much has to face a gem with a very snake-like appearance.

OK, who else think SU crew planed this? Like they planed to make Ronaldo the crazy alien guy and make him 100% right with later seasons?

I wouldn't be surprised if it turns out that Homeworld gems are in a war with snake people and that's the reason for the cluster being made.