North Sikkim closed for 20 days ?

I''ve just been informed that lachen is completely closed due to landslides. I've also been told that none of the places as per my itenary would be open for next 20 days (gurudongmar lake, zero point, yumthang valley). My flight is scheduled to leave on Monday (23/12/24). Should I cancel ? Message received: Road status update: Chungthang to Lachen Road blocked in between Rangma Range - Chu Bombu stretch. Expected time to reopen the road as per GREF is about 20 days approx. For kind information please. -SPC Chungthang