I think it's a small chance they sign Hopkins. But let's just play make believe for a minute. He just turned 31 on June 6. His last two seasons he's missed a lot of time (10 and 9 games played, respectively). Over that time, here's what he's done:
19 g, 160 tgt, 106 rec, 66.3%, 1,289 yds, 12.2 y/c, 11 td
Here's what his stats project to over a 16 game season (let's be optimistic and assume he only misses one regular season game):
135 tgt, 89 rec, 1,085 yds, 9 td
Which, of course, would be terrific. So he's still a very, very good wide receiver, when he's on the field. If he were to sign here, here's what the WR depth chart would look like. (not counting Slater and Webb who we all know are just special teams guys)
Roster
Bourne
Boutte
Douglas
Hopkins
Lee
Nixon
Parker
Smith-Schuster
Thornton
Depth Chart (as I see it)
Hopkins
Parker
Smith-Shuster
Bourne
Thornton
Boutte
Douglas
Nixon
Lee
I mean, that group would be pretty terrific, IMO. Hopkins as the WR1 pushes everyone down the depth chart, into a much more natural position. The top 5 of Hopkins, Parker, JuJu, Bourne, and Thornton is pretty good. And I think that Boutte and Douglas can really show the team some potential.
Is it more likely that if they sign Hopkins, they'd move Parker? That might be the play, in order to save money and/or get help somewhere else.
Bottom line: signing Hopkins would make this team more dangerous offensively. He's still a really good receiver - not what he once was, but still pretty good.