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It is impossible to speculate what will happen with the facts you described.
As a general matter, upon receipt of the complaint, the bar will evaluate whether to pursue it or not. What I mean by that is whether they want to hear the side of the local DA. The bar could dismiss the complaint up front. Or, the local DA may be invited to respond to the allegations and the matter may end there and be closed.
If the bar does harbor any concern, after considering the DA's response, they could pursue formal charges against the DA accusing him/her of misconduct. There's a formal complaint, and opportunity to respond, a trial
, and then the bar determines whether or not there was misconduct. If there is a finding of misconduct, they can recommend professional sanctions. Any discipline can be appealed to the state supreme court
As you can see, there are a lot of unknowns, but this is a brief description of the route of the professional discipline process. I hope that you find this information to be helpful and this answer to be ACCEPTable!