Indictment is not necessary. Due to the confusion over classification of the emails and her careful answers, much of the public doesn’t understand. Still her popularity is going nowhere but down. There’s a war being waged between the leaks from FBI sources and Hillary’s excuses and the comments from the executive branch. The details of the bribery and tax evasion however, will be well understood by the American public.
She’s becoming ineluctable. That will accelerate around May when the subpoenas area delivered.
If a precedent is set where political leaders can be prosecuted for using "poor judgment", it might lead to mass indictments. Thousands of politicians sent to prison.
Politicians would not want to spend hundreds of millions of dollars just to make life better for people they don't even know.