This is wildly speculative, of course, but figured it would be interesting to have one place to list first years who could make an impact on the D3 landscape. Here are some names to watch (with the understanding that folks from the pertinent region will likely have much better guesses than these; this is very New England-heavy at this point). From this list, I'd say that Scott, Johnson, Henderson, Harris, Fagbemi, Ofcarcik, Dalton, Fletcher, Mosely and Devine are all definitely worth keeping a close eye on ...
Justin Bardauskas - Bowdoin
Jordan Scott - Calvin
Ryan Johnson - Carthage
Tyson Henderson - Christopher Newport
Will Franks - Claremont McKenna
Gavin Carter - Colorado College
Noah Beaudet - Emmanuel
A.J. Harris - Emory
Jalen Reese - Hamilton
Brayden Fagbemi - Johns Hopkins
Elijah Farrington - Mount Union
Jahlil Graham - Mount Union
Jason Ofcarcik - Nichols
Simon Percy - Nichols
DJ Wallace - North Park
Jamarirea Dalton - Oshkosh
Seth Miron - Oshkosh
Xander Fletcher - Oswego
Max Lucey - Platteville
Adrian Mosely - Redlands
PJ Scalisi - RPI
Mason Prey - Stevens Point
Jared Berry - Trinity (CT)
Tristan Davis - Trinity (CT)
Matt Garside - Union
Reid Celestin - Wesleyan
Collin Madson - Whitewater
Aidan Chisolm - Whitewater
Matt Devine - Williams