A bridge hub would of course be a hub, and support more bridges than just one between Polkadot and Kusama. The development of bridges to connect other networks, such as Ethereum, have always been part of the plan for Polkadot. Even before the launch of Kusama, there were already plans in place for a bridge between Polkadot and Kusama. However, creating secure bridge technology is a challenging task, as recent security breaches have shown. Despite these difficulties, the team at Parity, in partnership with Snowfork and the Web3 Foundation, has made significant progress and launched common good parachain BridgeHub on Kusama network.