Homecoming's 2020 festivities will culminate in the Nittany Lions' clash against Iowa at Beaver Stadium on October 17.
The former five-star recruit out of high school has committed to move to Florida after entering the transfer portal in late November.
Gross-Matos and Hamler will represent the Big Ten in teh 24-player event.
Kiper Jr. foresees two first-round selections in Hamler and Gross-Matos come April.
Pat Freiermuth and Micah Parsons are expected to be some of college football's best for the 2020 season.
"He was a sure tackler who also made incredible strides across the field in every facet of play."