If implemented, it might have an impact on the vacancies, created in Central Government Services. Recruitment for most of the central government posts is done by SSC or UPSC. So, it might have an impact on SSC Vacancies in coming days, if implemented.
In any case, it will not have any impact on vacancies in PSU Banks. All government banks, including SBI. PNB, Bank of Baroda, Allahabad Bank and so on, are Public Sector Undertakings and they do not come under central government services. IBPS conducts a common written exam the 19 PSU Banks, while SBI & Associate Banks conduct their own exam for the recruitment in Banks.
If, the proposal is taken seriously it might take atleast up to one year to get it implemented.