When he does play I won't be expecting much. He'll be behind the 8 ball playing catchup, knocking off the rust, etc and even then a lot of folks are really overstating what he was doing last year. He made one really outstanding catch and a handful of routine ones. Despite that really big sideline catch he made, he has trouble holding the redline on deep routes. He's uber skinny and plays like it in that he repeatedly gets walled off to the sideline to the point where he has no room to make a catch or even pushed out of bounds because he runs with little strength. Speed isn't the whole story when you're talking about deep routes. I actually think he'll be more valuable on scramble drills than every day routes.
And on top of that, his health will always be really concerning. I think he'll always have structural integrity issues in the NFL because he's so skinny. Maybe I'm wrong on that, but it generally holds true like the Monstar case.