InitiativeQ is still rolling and has already 2 million members
I am not sure if there will be a future for the payment Q system but it's worth a try and doesn't cost anything. So if you want to participate register here:
https://initiativeq.com/invite/BxySMUDh7
Initiative Q is an attempt by ex-PayPal guys to create a new payment system instead of credit cards that were designed in the 1950s. The system uses its own currency, the Q, and to get people to start using the system once it's ready they are allocating Qs for free to people that sign up now (the amount drops as more people join - so better to join early). Signing up is free and they only ask for your name and an email address. There's nothing to lose but if this payment system becomes a world leading payment method your Qs can be worth a lot. If you missed getting bitcoin seven years ago, you wouldn't want to miss this.
After you have registered and I have verified you, you can invite 5 people yourself and grow your Q amount!
Best wishes from Switzerland