Originally Posted by
chpy
I'm not so sure about that. Those are actually connecting lines between the blue and silver, and silver and gold cards. The current program description also explains how many miles you need in order to achieve the next higher satus level. From zero to blue 4k, and from blue to gold 16k, which equals 20k from zero to gold.
I would tend to agree - I think what will happen is that you'll qualify for Silver, your year will reset, and then you'll have a further 12 months to get the miles for Gold.