50% off Lawry's and Senso with American Express Palate Dining Privileges?

I received an email today from American Express notifying me that "more Palate Dining Privileges [are] coming [my] way". I noticed that two restaurants (out of the six listed) do not currently exist on the Palate Dining Privileges website - Lawry's The Prime Rib and Senso Ristorante & Bar. Do note that at this point of time, everything here is pure speculation. 

It will be interesting to see American Express adding these two restaurants to the list as they are both pretty established and famous in their own rights. Also, if you do not already have an American Express Platinum Credit Card or higher, it is definitely a great idea to consider it if you tend to dine at their Palate or FAR restaurants since you can benefit from up to 50% off your food bill.