Originally Posted by Horace

20,000 Starpoints maps perfectly to 60,000 new Points (new Category 7), so it's possible that the point requirements will effectively stay the same.

It's also possible that the Sheraton Maui will go down. The Ritz-Carlton, Kapalua, will also be Category 7, because Category 7 is the highest category for the rest of 2018. It would be strange for the Sheraton Maui to require as many new Points as the Ritz-Carlton, Kapalua.

The Marriott Wailea Beach Resort on Maui is currently 40,000 Rewards Points. There is not a new August 2018 category at that level, so the Marriott Wailea will have to go up or down.

I would not rely on anyone's guesses here to predict the future. Unlike a few people here, I don't expect a "massive devaluation" in August 2018. In fact, I think Marriott will try to delight us with the new category assignments -- but that ongoing category creep in future years will slowly take its toll over time (as it has in past years).

Why not book now on Maui, and then cancel and rebook if you see something better when the new requirements are released?