The RenVM is the asset management system for coins off of ETH. The difference between using a node architecture or smart contract based architecture on ETH is what it costs to run the code. GAS is used on ETH, to incentive the entire network to run and verify transactions/code. With DLUX only interested parties make state changes, they are using their Hive Resource Credits for secured cross-talk, while the entire HIVE network verifies only the transactions/cross-talk. Building a bridge between smart contract chains like ETH with DLUX will take quite a bit of work, and due to the nature of Hive/DLUX the bridge will have it's "toll booth" on the ETH side in something like a wrapped DLUX asset.
While the runners of DLUX nodes can deterministically control a Hive multi-sig wallet there would need to be a lot of work done to control a multi-sig wallet on a different chain; but it is possible. It is a long term goal.
Thank you for the detailed answers! It clarifies a lot.