Not that anybody would care at this point - but you can check out their new website:
https://mgallery.accorhotels.com/uni...index.en.shtml
I got an email inviting me to visit it today and, lo and behold, all mentions of "by Sofitel" are gone and the "By Sofitel" script was replaced by "Hotel Collection" in the logo / wordmark. The operators who just managed to change all the supplies to display the "By Sofitel" logo must be overjoyed!