If Rob Gronkowski is going to retire this offseason, he's yet to give any clear indication.
According to Mike Reiss of ESPN.com, Gronkowski "has still shown up at Gillette Stadium multiple times over the past couple of weeks."
Reiss continued:
"Though he might be visiting Gillette Stadium simply for treatment of his thigh, I also view his time at the facility as a reflection of his being in a good place with how the season ended, both team-wise and personally. That doesn't guarantee his return in 2019, but it figures to at least be part of his decision-making process on whether to continue his career.