As ruffin said, 30 is the max we can take of "new scholarship"/"first scholarship" players.
Any new player to the team that will be on scholarship counts towards the max.
We must be down to 85 by Fall Camp.
We have 18 walk-on commits as of yesterday with 12 remaining walk-on targets, according to Nate.
Also as ruffin said, we have 16 seniors graduating, so 16 open spots for the 2020 class, plus any departures. This site is expecting a class of 22-25 next year.
Hard saying who might leave following their freshman, sophomore, or junior year, but some could see Spielman leaving to the NFL if he has an amazing year.
Other than that, some other questionable players going forwards would be Alexander and Jefferson, while some posters on this site started rumors awhile ago by saying McQuitty or Bradley. (No proof, only speculation and rumors)
Who knows who else could leave beyond those I mentioned, but IMO its more likely to be from a younger class than the 2020 senior class.