I think they just took pity on the bereaved family of Houston Antwine and let Fred Marion take his place as the veteran that made it to the final round but had no chance of getting in this year.
With players from 2001 and on becoming eligible for the next several years there will be more intrigue in who the three nominees are than who actually gets voted in.
2011: Drew Bledsoe
2012: Troy Brown
2013: Tedy Bruschi
2014: Willie McGinest
2015: Rodney Harrison
2016: Matt Light
2017: Kevin Faulk
Some of those from 2014-17 may not be in the correct order, but it's likely to be between those four. It could be quite a while before Parcells, Ty Law, Mike Vrabel or anyone else get in. When Tom Brady and Bill Belichick become eligible that's going to push everyone else back a year as well.
It's a nice gesture by the team to leave the voting up to the fans, but collectively they are almost always going to vote for the players freshest in their mind. The longer a player is retired the less and less of a chance that he'll have of ever getting in.
The next veteran's committee choice is 2016 which would presumably be the time Houston Antwine finally gets in, though maybe Julius Adams, Russ Francis, Leon Gray or Raymond Clayborn could get the vote instead.