This was requested for the first time almost exactly four years ago and answered this way in mid-May of this year: "[...]Unfortunately, we have to disappoint you. There are no plans to include Club Mate in our range. [...]"
Thank you @Frederica for your information. As @Frederica has already written, the latest status (May 2017) is that Club Mate is not included in the range. I would be happy to ask the product managers if this has changed in the meantime. I will get in touch again. Kind regards, Nicole
The product managers have already contacted me. They have something planned: there will be some new products next summer. Unfortunately, I can't reveal what these will be and whether Club Mate will be included. Stay tuned ;-) Best wishes and happy waiting. Nicole