Is there any upcoming project that would act like a bitcoin savings account?
What do you mean bitcoin savings account? is it like a bank that giving any interest of the money you lend it to them.
For me it is good to do bitcoin savings through putting it in the bitcoin wallet address. Like Electrum, bitcoin core, multihd, and etc.
Saving in the wallet will not grow your bitcoin, whereas when the bank is present it will probably grow your bitcoin. Because they provide interest facilities for customers? Investing bitcoin would be more risky than storing bitcoin in a bank? But for now store bitcoin in the bank not yet present