From Cnet's updated article.
http://www.cnet.com/au/news/tizen-wont-be-coming-to-samsungs-older-smart-tvs-ces-2015/
I am an HU8550 owner so I will be keeping an eye out for the one connect box.
http://www.cnet.com/au/news/tizen-wont-be-coming-to-samsungs-older-smart-tvs-ces-2015/
The company on Wednesday said owners of last year's H8000 and H7150 LED television sets as well as the pricey, ultra-high definition HU9000 and HU8550 TVs can update to the new operating system after buying a 2015 Evolution Kit. For 4K/Ultra High Definition TV owners, Samsung will sell a One Connect Box that updates not only the software but also the brains of the television, HDMI inputs and other items.
I am an HU8550 owner so I will be keeping an eye out for the one connect box.