Nobody seems to know anything about this for certain. The only fact that can be corroborated is that the Hilton Arc de Triomphe does not offer reward stays anymore. Booking with points or free nights certificates is not possible. I just called HHonors Customer Care to get the facts, but they don't know anything about this either. No, point bookings are not available for any given date in the future, but also no, they have not heard anything about the property separating itself from the Hilton chain.
So, one wonders, will they hhonor the existing reward bookings? Will I get my points, nights and stays credited if I have an upcoming reservation? Will I be refunded my prepaid non-refundable rate in case the hotel is not a Hilton anymore at the time? Will they offer a room at another property (which could be a problem, because there is no other property in central Paris, only the Waldorf Astoria in Versailles, where the HHonors VIPs would miss their free breakfast, to say nothing of an Executive Lounge, about twenty miles away, or the Hilton Paris La Défense, in the rather drab and far-away business district of the city)?
Nobody knows. I think I'll write an email to the hotel to get the facts. Stay tuned, I'll share the answer I will get here – that is if I get one.
So, one wonders, will they hhonor the existing reward bookings? Will I get my points, nights and stays credited if I have an upcoming reservation? Will I be refunded my prepaid non-refundable rate in case the hotel is not a Hilton anymore at the time? Will they offer a room at another property (which could be a problem, because there is no other property in central Paris, only the Waldorf Astoria in Versailles, where the HHonors VIPs would miss their free breakfast, to say nothing of an Executive Lounge, about twenty miles away, or the Hilton Paris La Défense, in the rather drab and far-away business district of the city)?
Nobody knows. I think I'll write an email to the hotel to get the facts. Stay tuned, I'll share the answer I will get here – that is if I get one.

