Personally, I think you're hoping and wishing for nothing--but that is simply a difference of opinions between us on this matter.
Ed Reed WAS a great player, as noted in the 2009 season documentary "A football life--Bill Belichick." All of the great things that he had to say were more based on the Ed Reed that was, not the current one who is coming off of a major hip surgery, is over the hill, and who hasn't been known for his great attitude.
On top of that we have a rookie in Daron Harmon who will see increased playing time until Gregory returns in a few games. It's hardly the end of the world and one would assume that not only does Harmon know the system much better than Reed ever could (even in a month or so), the coaches are also likely interested in seeing how their 3rd round pick may be paying off, and also assessing how big the need may be when Gregory is let go at the end of the year on the big cap number.
There's no way to know about Harmon unless he gets live game reps, and now that he's in a position to do that you're suddenly going to hope that old ass Ed Reed is going to come in, pick up the system, hobble around on his hip, and change his attitude all at once? I'm not buying it myself, but that doesn't mean that you may not be correct in the long run. We will have to wait and see how it plays out, and if Belichick is even remotely interested at this point.
