If implementation of new Cardano features and breaking changes is not completed then hardware wallets may become incompatible with Cardano, stopping users from accessing newer blockchain features or stop working altogether.

If regular maintenance, bugfixing and developer support is not completed, wallets may lack functionalities and development of tooling that is using HW wallets may become impossible or much more difficult.

Starstream supports use-cases that require private computation (necessary for many RWA use-cases) enabling a new category of apps to exist on Cardano. It does this while also allowing for near-zero cost of batching txs which massively improves scalability even for DeFi use-cases

Reitcircles is working with real world builders in this segment to address this topic. So that the funds are managed in a professional setup using blockchain and allow all the goodness of blockchain such as instant settlement, transparency, DAO driven consensus for fund management etc.