Here's my list as of Wednesday... which of course means it does not account for anything that occurred in yesterday's games or the final round of roster cuts and waiver claims. I'll update it in the Week 1 content next week.
ELITE KR & PR
WR Josh Cribbs, Cle
RB Darren Sproles, SD
KR & PR
WR Eric Weems, Atl (others could join him later in the season)
Rookie CB Perrish Cox and/or WR Eddie Royal, Den
CB Will Blackmon, GB (if/when healthy… if not, could be a committee of RB Brandon Jackson, WR Jordy Nelson, and possibly WR Jason Chery)
Rookie WR Brandon James, or rookie DB Ray Fisher, or RB Devin Moore, Ind
Rookie CB Javier Arenas, KC (although rookie RB Dexter McCluster should also get some returns)
RB Stefan Logan -or- rookie WR Antonio Brown, Pit
WR Danny Amendola -and/or- rookie WR Mardy Gilyard, StL
RB Clifton Smith, TB (If healthy! If not, the WR Sammie Stroughter -or- WR Micheal Spurlock)
Rookie WR Marc Mariani -or- rookie WR Damian Williams, Ten
Rookie WR Brandon Banks -or- rookie WR Terrence Austin, Was
KR ONLY
RB LaRod Stephens-Howling, Ari (unless his concussion is worse than anticipated, then look for CB Justin Miller)
RB Jalen Parmele and/or recently acquired CB Josh Wilson, Bal
Rookie RB C.J. Spiller and CB Leodis McKelvin, Buf (either could occasionally spell Parrish on punt returns)
RB Mike Goodson, Car (although numerous others could join him)
DB Danieal Manning, Chi (with WR Johnny Knox mixed in)
RB Bernard Scott and CB Adam Jones, Cin
RB Steve Slaton, Hou (after turf toe heals)
Rookie RB Deji Karim, Jac (after thumb heals)
RB Patrick Cobbs -or- rookie CB Nolan Carroll, Mia
WR Percy Harvin, Min (when healthy)
WR Courtney Roby, NO
WR Brad Smith, NYJ
RB Rock Cartwright, Oak
CB Ellis Hobbs, Phi (with a little bit of safety Quintin Demps mixed in)
RB Leon Washington, Sea
WR Ted Ginn Jr., SF (can also fill in on punts if needed)
PR ONLY
Rookie WR Andre Roberts, Ari (once he returns from his shoulder sprain)
Rookie DB Prince Miller and/or FS Tom Zbikowski, Bal
WR Roscoe Parrish, Bal
CB Captain Munnerlyn, Car (although numerous others could join him)
WR Devin Hester, Chi
WR Quan Cosby and CB Adam Jones, Cin
WR Jacoby Jones, Hou
Rookie CB Scotty McGee, Jac (will probably also handle kickoffs early on until Karim is back)
WR Davone Bess, Mia
RB Darius Reynaud, Min (will probably also handle kickoffs if Harvin is unavailable)
RB Reggie Bush, NO
CB Aaron Ross, NYG (when plantar fasciitis clears)
Rookie CB Kyle Wilson, NYJ (unless he becomes too busy on defense)
WR Johnnie Lee Higgins, Oak
WR DeSean Jackson, Phi
Rookie WR Golden Tate, Sea
Rookie WR Kyle Williams -or- rookie CB Phillip Adams, SF
POTENTIALLY THE BEST CHOICES FROM THE COMMITTEES
Rookie WR Dez Bryant, Dal (although not until later in the year due to injury… possibly rookie CB Akwasi Owusu-Ansah earlier in the year)
RB Aaron Brown, Det
WR Brandon Tate and WR Julian Edelman, NE
Possibly someone they pick up off the waiver wire, NYG