[Information regarding the future of Mystic/Soul Badges, Accessories and new Tower of Infinity Badges]

Yea I would like to ask the same question.. For instance if I have a shadow earring and i upgrade it after the patch will I still be able to switch it to it's fire counterpart or will I have to upgrade it prior to the patch ??

 

Also same question regarding the duration of how long the feature would be available ?