AFAIK they were dismissed with prejudice, so can't be brought again.
If I understand correctly, only one of the "murder-for-hire" allegations was dismissed with prejudice[0]. However, he was suspected of orchestrating a total of six "murder-for-hire" plots.
Comically (horrifically sadly?) they were dismissed that way because he was already in prison for life with no possibility of getting out, so the court did not want to waste time on it.
And here we are