It sounds like you will have a credited number of Bitcoin that equals to the money you use to buy it with bank account.
The main source is from
Financial Institutions Can Now Provide Consumers Easy Access to Bitcoin via Fiserv and NYDIGIn addition to enabling banks to allow their consumer customers to buy, sell and hold bitcoin alongside their bank accounts, Fiserv and NYDIG are working toward implementing additional functionality, including the ability for banks to implement bitcoin-based rewards programs.
First, it should be centralized platforms and also connect to banks, not good.
Second, who are owners of private keys for those Bitcoin addresses?
Two big questions and I guess the answers are not good actually.
It can help to bring Bitcoin to mainstream, more deeply and faster but it is not good if you are care about privacy and anonymity.
satoshi created Bitcoin to beat the bank system and now people want to connect their Bitcoin with bank, hold it with bank control. Terrible idea.