The World Brain, known as pazhkic Yuuzhan'tar al'tirrna in Yuuzhan Vong, was a dhuryam tasked with overseeing the Vongforming of Coruscant during the Yuuzhan Vong War.
it's hard to understand why disney would decide to dump the EU when that means losing great and respectable sounding concepts like "the Vongforming of Coruscant"