Given the wording that is used in the invite, it would seem that WGT are focusing on offering more to the long-term players and those who've tiered up to the back-tees.
With the current model creating a presence of players sitting in tiers to exploit the shorter distances, this is a proactive step forward to push these players into tiering up. Whether it works remains to be seen and will largely be down to what's "extras" will be thrown at us.
I personally welcome any innovation in what they offer and hope to see something similar to what Mongo mentioned in regards to an official ranking classification using the tour / major events.