STC was defeated after a Saudi bombing campaign, and their independent nation quashed. While there might be holdouts here and there, they are a non-entity now.
i hope so, they have been one of the biggest sources of discord in the Middle East, funding civil wars in Libya, Sudan, Yemen, funding a coup in Egypt.
I wouldn't be surprised if the UAE starts scheming to foment within Saudi Arabia next. And unfortunately, the only counter to that would be for Saudi Arabia to become further entrenched in its Salafi culture.
i think next moves of us-israeli-uae axis will be against Turkey and Qatar. we are already seeing this rhetoric in democratic party and in israel.