I would say give it another 2 or 3 months . I looked in China today and about 15 plus Mercure-Sofitel brands we displaying no pricing from the 1st of January 2019. I would be shocked if so many hotels left. Also Fairmont Chengdu has no Pricing after 31st December. Yet it only Just opened within the last year so I suspect/hope many of them are Just not updated yet for 2019.