NFL teams are allowed to have 45 active players on a gameday roster. It is HIGHLY unlikely a team carries a kick return specialist. This is even more unlikely since the kickoff changes and now nearly 50% of kickoffs are even returned. His only chance would be if he proved to be able to make a team as a 4th or 5th wide receiver and they happen to put him back to return kicks
Are you serious? Bill Belichic was one of the first coaches to draft a player JUST for special teams. There are quite a few that do now. Like the Redskins, Texans and Browns. Like Roger Dorn said above, Holliday is a perfect example.
More and more teams will continue to draft for JUST return specialists.
New England's kick returner last year was their best DB, Devin McCourty. Browns have their 2nd best WR. Redskins, Brandon Banks (I will give you that one). Texans, Jacoby Jones (their 2nd or 3rd WR). As I said above, 2 or 3 players (Banks, Holliday, and maybe one other one who I'm not aware of) doesn't make Taylor's chances likely. I said it's unlikely which doesn't make me incorrect.