The new precautions include banning most bags and seat cushions, allowing fans to bring belongings in a clear bag instead.
Ara Parseghian died in his home in Granger last week. He was 94 years old.
Athletics director Mike Bobinski says the expansion decision was made after "extensive discussions" with campus police.
The Maryland family is seeking damages after they say their son tore a ligament in his knee at a university football camp.
Wilson coached the Hoosiers for six seasons. He will be co-offensive coordinator at Ohio State.
This marks the second consecutive bowl appearance for the Hoosiers since the years 1990 and 1991.
Steve and Yvette Schmitz sued the NCAA and Notre Dame in October 2014 alleging the institutions had shown "reckless disregard" for player safety.
This season marks Indiana's second consecutive bowl appearance which the team hasn't accomplished since 1991.
The penalty is for academic misconduct that took place from 2011 to 2013, involving a student athletic trainer.
The players arrested on marijuana charges may avoid jail time and criminal records after reaching plea bargains with prosecutors.