It's been a long while since I last came to this site and I have forgotten the date which one's status is demoted if they haven't reached enough nights for maintaining their level.
I have luckily managed to maintain titanium for 2019, but have fallen far short to maintain for 2020. The Titanium level for 2019 was actually not earned but was continued from 2018....so no more grace periods.
As I vaguely recall, one's status changed either the middle of January or February. I realize after the merger in August 2018 the rules may have changed. I have a booking the first weekend in Jan and was hoping I'd still get Titanium perks.