Tallahassee police have defended their handling of the case and said it was placed on inactive status in February after police were told the alleged victim did not wish to prosecute the case. Carroll has denied that the woman wanted to drop the investigation.
The alleged victim was an FSU student during the December incident, but she left school after Carroll was told by police that information about the case was about to be released to the media.
Associate athletics director for communications Rob Wilson said the university did not have any comment Wednesday. The university is expected to address the matter sometime after Meggs' news conference.
Florida State policy dictates that a student-athlete is suspended from game action if charged with a felony until the charge is resolved "absent extraordinary circumstances as determined by the administration."
Winston set ACC freshman records with 3,490 passing and 35 touchdowns this season.
Information from The Associated Press was used in this report.