I wanted to compile a list of players that are either on the 2-deeps this year or are contributors and track how many years of eligibility they have after this season is complete. As far as I understand it, 2020 did not count at all, neither for counting as a year played or toward the 5 years to play 4. This list is not a predictor of who uses their eligibility or who doesn't.
Players that have no more eligibility following the 2021 season:
Vanvalkenburg
Shudak
Hankins
X. Williams
Offense
QB: Petras – 2 years
Padilla – 3 years
Labas – 4 years
RB:
IKM – 1 year
Goodson – 2 years
G. Williams – 3 years
L. Williams – 4 years
WR:
Jones – 1 year
Ragaini – 2 years
Tracy – 2 years
Johnson – 3 years
Bruce – 3 years
TE: LaPorta – 2 years
Lachey – 3 years
Yelverton – 4 years
OL:
Schott – 1 year
Linderbaum – 2 years
Ince – 2 years
Plumb – 2 years
Britt – 2 years
Colby - 3 years
Dejong – 3 years
Richman – 3 years
Defense
DL:
Evans – 2 years
Waggoner – 2 years
Shannon – 2 years
Lee – 3 years
VanNess – 3 years
Craig – 3 years
Black – 3 years
Hurkett – 4 years
Logan Jones – 4 years
LB: Campbell – 2 years
Benson – 2 years
Jacobs – 3 years
Higgins – 3 years
DB:
Moss – 1 years
Koerner – 1 year
Roberts – 2 years
Belton – 2 years
Merriweather – 2 years
Harris – 3 years
Schulte – 3 years
Special Teams
Taylor – 3 years
Players that have no more eligibility following the 2021 season:
Vanvalkenburg
Shudak
Hankins
X. Williams
Offense
QB: Petras – 2 years
Padilla – 3 years
Labas – 4 years
RB:
IKM – 1 year
Goodson – 2 years
G. Williams – 3 years
L. Williams – 4 years
WR:
Jones – 1 year
Ragaini – 2 years
Tracy – 2 years
Johnson – 3 years
Bruce – 3 years
TE: LaPorta – 2 years
Lachey – 3 years
Yelverton – 4 years
OL:
Schott – 1 year
Linderbaum – 2 years
Ince – 2 years
Plumb – 2 years
Britt – 2 years
Colby - 3 years
Dejong – 3 years
Richman – 3 years
Defense
DL:
Evans – 2 years
Waggoner – 2 years
Shannon – 2 years
Lee – 3 years
VanNess – 3 years
Craig – 3 years
Black – 3 years
Hurkett – 4 years
Logan Jones – 4 years
LB: Campbell – 2 years
Benson – 2 years
Jacobs – 3 years
Higgins – 3 years
DB:
Moss – 1 years
Koerner – 1 year
Roberts – 2 years
Belton – 2 years
Merriweather – 2 years
Harris – 3 years
Schulte – 3 years
Special Teams
Taylor – 3 years