The road to Gurudongmer would most probably be closed due to haevy snowfall. The other places you can be in North Sikkim is Lachen Lachung Chungthang also Yumthang. But you can also be in Namchi Ravangla , Rinchenpong Barmiwok Chayatal in west sikkim. South Sikkim is mostly about Gangtok Pelling. East is about Zuluk that's old silk route. So go out and enjoy the beauty at its best.