I for one do not think file-sharing is dying down slowly, I think we as sharers will get through this just like we did the other times it has come our way.
We have not fallen yet, the only things thay can really do are shut don the sites thsat host torrents and bit-material, and close the IP ranges down for them.
They will never get rid of us, because before the site disappears, the users and staff create one right in its place. So, with that in mind, they may be able to beat us in the short run, but in the long run, we are still going to be there all the way.
There is my 2 cents.
/chaudurri