The relationship between banks and government would be an interesting topic. The lobbying power that the financial sector has in this country is immense, and this certainly is reflected in the debates over regulation of banking.
Another topic might be the consolidation of big banks through acquisition. Many banks, before and after the crisis of 2008, were snapped up by bigger banks, and the trend continues.
There has been a lot of bad press lately about banking. I think it might be interesting to choose a thesis related to that, and maybe even how public perception of banks has changed in recent years and how managers are dealing with it. People are actually going into banks with automatic weapons these days, not to rob the bank but to get revenge for a foreclosure.
kindly suggest me a topic for thesis in the area of customer experiance management in banking sector....