It was brought back the year after but the servers were dead.
Personally I would like something with replay value. On your own, the game is a fun waste of time. But it was too easy to blast through the game if you had other people about to drop shit for you.
I wouldn't mind a virtual chat room where you walk about using an avatar that's easily accessible from the front page to dick about with people. Think Habbo Hotel or Club Penguin, only it's for adults so you don't get banned for the tiniest provocation. But I realise an interactive chat room is probably asking a bit much.