To be honest I'm not sure. There are some ideas floating around our original thread. Obviously it has to be a community effort. I would recommend setting up a group effort to reach out to the original owner (Jaymes) and get all the coins that he has. I might be able to help with this process.
+1
I'm the coin developer.. and owner of current github repo.
It's good that someone is taking over GPUCoin.. I'll be happy to help and assist in any way.
However, you need more of a strategy than just reviving the code.. the code was never dead and has always been maintained.
For promotions, i think it would be great to get someone to own and drive it.
For business angle/use case.. need to be more creative.