Taro94: Give me all this evidence you seem to have that will show me a different fate awaits this "reclaim game steam edition" feature. ;)
I have given in other threads the reasons why reclaim your game is hugely problematic. If the publisher has kept a list of the retail cd-keys they have handed out, then they could potentially offer the game for the "Reclaim your game" program. If they haven't kept said list or if the game didn't have keys to begin with, automatic redemption will be a huge pain.
Yes, you could go the MoO way and send pictures of your retail boxes/disks/manuals, but that wouldn't fall under automatic redemption but manual processing.
I do believe that GOG Connect will return, and I hope it will be this year. Only publisher I think has the database to check for "Reclaim your game" is EA (since they are already offering that for Origin), but not sure that they would be interested in doing so. But maybe they'll surprise me when their next batch of games hits us.