At this time, we are not planning a future sale. However once all tokens are distributed, they will be available through Open Exchange.
Then what's the countdown on the main website for?
https://cryptonomos.com/wtt/The countdown is to the release of the first batch of WTT tokens, according to the text:
1ST BATCH OF TOKENS RELEASE
August 07, 2017
I imagine they'll reset the counter with each batch released.