The dude is WR5 or so. A hamstring injury is not going to affect how high he goes next season. What might affect it more is the QB situation. Will Winston still be there throwing the ball a ton? As much as Winston turns the ball over he's also fantasy gold for his WR's under Arians system.
Evans had some quieter games when Godwin was the main focus but he also had about 3 or 4 monster games where he won you the week almost single handed and was probably on his way to another monster game this weekend until he injured his hamstring.
If you drafted him end of the 2nd or beginning of the 3rd round I think you got what you wanted out of him apart from the unfortunately timed hamstring injury.