Although they tell very different stories with very different levels of scope and scale, The Purge and Get Out both lean heavily on similar themes.
Blumhouse Productions owns both properties, so realistically-speaking, it would not be entirely outside the realm of possibility for a future film to reveal a connective thread between the operations conducted at the Armitage estate and New Founding Fathers.
In fact, with The Purge: The Island reportedly explaining the origins of the hellish, crime-filled night, it would be a perfect chance to merge the timelines and show moviegoing audiences how both of these worlds exist in the same hate-filled universe.
Both rely on ideas of racial and social inequality to tell their respective stories, and both use exaggerated depictions of real-life prejudice to provide a layer of substance to the scares and thrills.