I imagine you could practice if you were enrolled in school. Not sure you could practice coming off the street, so to speak. Maybe you can. I seem to remember remember former Alabama running back Mark Ingram practicing the team years after he left for the NFL. Or maybe it was Trent Richardson. Maybe there’s a weird rule about practice-only players.
Would make zero sense for an EE to play in a bowl game. Even with the four game redshirt rules, playing in one game this year is a season, no? Next year the player will be a redshirt freshman instead of a true freshman.