Speculation is running rampant of course:
The Department of Justice announced in a tweet Friday that Deputy Attorney General Rod Rosenstein will be holding a news conference with a law enforcement announcement the same day. No other details were released, but many believe this could lead to possible indictments.
A similar situation occurred in February 2018, when Rosenstein called an unexpected press conference to announce the indictment of 13 Russian nationals and a Kremlin-linked internet firm on charges that they meddled in the 2016 presidential election.
The president is not free and clear either. President Trump faces at least four allegations of criminal misconduct. He and senior members of his campaign are under investigation for coordinating with Russians to win the 2016 election.
Update from the Washington Post:
A dozen Russian intelligence officers have been charged with conspiring to hack Democrats during the 2016 presidential campaign, according to a new indictment in the probe led by special counsel Robert S. Mueller III.
The 12 were members of Russian military intelligence, known as the GRU, and are accused of engaging in a sustained effort to hack the computer networks of Democratic organizations and the Hillary Clinton campaign.
Deputy Attorney General Rod J. Rosenstein planned to detail the new charges at a mid-day press conference. Mueller, as has been his practice, was not expected to attend the announcement. Court records show a grand jury Mueller has been using returned an indictment Friday morning.