Now that the CM, DVC and AP previews are over, the attraction will move onto a period of unannounced soft openings. During this time, there is no set timeframe where the attraction will definitely be operating. This gives WDI time to complete parts of the attraction, and to tweak things based on operational feedback from the previews. The ride is set to be closed all day today, with openings perhaps taking place again towards the end of the week.
The official status is currently:
"Guests will be able to get a sneak "peak" at Expedition Everest beginning in early February during regular park hours. The ride may not always be operational during park hours."