That is correct, I followed up with the AMA session held by Polkadex CEO and Executuive Director while they were answering questions and sheding more insights about the project. Polkadex is a wide-ranging project with distinctive components (PolkaIDO, Polkapool, Polkadex Orderbook, etc) and would be having their own mainnets. The Launch of Polkadex Blockchain will definitely open door for more of it's other components to manifest without futher delay. Good for holders as PDEX would be migrating from the Ethereum blockchain to Polkadex blockchain..