The question is framed in a way that does not align with reality.
Does Bitcoin plan to implement any Fraud/Loss Prevention in their protocol?
Bitcoin doesn't exist as a person, corporation or other entity
The question implies the existence of a person or organisation named Bitcoin.
As Mark H pointed out, there is no entity named Bitcoin who owns the Bitcoin protocol. There is not even any group of people who can claim exclusive control of Bitcoin.
Yes there are all sorts of people who think about fraud and Bitcoin, but they are not a well defined group with a well defined membership. Anyone can think about this and make proposals.
However there is another reason why this is irrelevant:
Cash is not Banking
Bitcoin is digital cash and this is fundamental to any answer to this question. Fraud prevention in cash is a different problem to fraud prevention in banking. Satoshi Nakamoto's Bitcoin Whitepaper begins
Bitcoin: A Peer-to-Peer Electronic Cash System
Abstract. A purely peer-to-peer version of electronic cash would allow online
payments to be sent directly from one party to another without going through a
Note the repeated use of the word cash there. Note the rejection of any role for any kind of financial institution.
What do other systems of cash do?
Now we can ask ourselves, who designs and creates US dollar bills (banknotes) and what fraud prevention measures do they use?
The answer is the US Treasury Department's Bureau of Engraving and Printing. The fraud prevention measures they take are, so far as I know, entirely measures by which one can detect forgeries. They include special papers and inks, special printing methods and so on. These are all features built in to the currency.
Note that the US Treasury Department's Bureau of Engraving and Printing do not provide a service where you can phone them up and say Mr X swindled me, please trace Mr X and remove five $10 bills from Mr X's pocket and then place them in my pocket. That is not the job of the US Treasury Department's Bureau of Engraving and Printing.
In this system of cash, it is the police and the courts who remove cash from the pockets of swindlers and return the cash to the pockets of victims. It is their job, not the job of those who design the bills (banknotes).
Note that there is nothing in the design of the US dollar bill that in reality facilitates the work of US police in determining which party is telling the truth or tracing the location of Mr X or working out where he put those bills. The serial numbers are some potential help but few of us write down the serial numbers of money we receive or pay. Transaction Ids in Bitcoin might play a similar role.
So what do users of cash like the US Dollar do?
The answer is as old as cash. Escrow and the courts.
The job of the people who design the cash is to prevent fraud by preventing forgeries. It is not their job to intervene in disputed transactions or to move money between citizens.