This doesn't require a BSIP or a Worker proposal. The capability to display this information exists, as evidenced by the fact that block explorers provide it, and there is already a UI worker proposal voted in. This needs to be brought up in the form of an issue on the bitshares-ui GitHub.

Edit: Except for SMS notifications maybe. Although that could be done easy enough by integrating into an SMS provider's API. The only thing is, you would need to leave your client running for it to work.