Here's my go at a PS roster. This of course assumes that we don't sign anyone from any other team's cuts to our PS.
Italics makes the 53, Bold are PS, Strikethrough are cuts.
QB – Dennis Dixon
RB – Ronnie Wingo
WR – Caleb Holley, Chris Summers, Sammy Watkins
TE – Dominique Jones
OL – Seantrel Henderson, Cyrus Kouandjio, Macky MacPherson, Antoine McClain, Cyril Richardson, J.J. ‘Unga, Jared Wheeler
DE – Ike Igbinosun, Bryan Johnson, Jacquies Smith
DT – Stefan Charles, Damien Jacobs
LBs – Xavius Boyd, Preston Brown, Jimmy Gaines, Randell Johnson, Ty Powell
CBs – Ross Cockrell, Sam Miller, Bobby Felder, Kamaal McIlwain
S – Derek Brim, Deon Broomfield, JaJuan Harley, Kenny Ladler, Jonathan Meeks
K/P – Jake Dombrowski, Dustin Hopkins PS
This second list is the group of players who could fill the two spots on the practice squad by having two accrued NFL seasons or being active for less than nine regular season games in any of their accrued NFL seasons.
QB – EJ Manuel, Jeff Tuel
RB/FB – Bryce Brown, Evan Rodriguez, Frank Summers
WR – Marquise Goodwin, T.J. Graham, Chris Hogan, Naaman Roosevelt, Robert Woods
TE – Chris Gragg
OL – Cordy Glenn, Chris Hairston
DT – Corbin Bryant
LBs – Kiko Alonso*, Nigel Bradham
CBs – Ron Brooks, Stephon Gilmore, Nickell Robey
S – Duke Williams
PUP - Kiko Alonso. There's no need to move him to IR until almost Thanksgiving unless they want to since he was on the non-Football injury list. He counts against the camp roster limit and they have NOT put him on season ending IR yet which would gain them another camp spot so I think this is the direction they will go. He'd need to be activated off of PUP by November 19 and on the 53 man roster by December 10th in that scenario. If he's not close they can IR him then and have lost nothing. The timing of his injury basically lets them treat him as an extra Injured-Designated for Return player.
He's only been active for a total of 4 games.