https://www.cnet.com/news/nasa-is-still-holding-out-hope-for-the-mars-opportunity-rover/

"A windy period on Mars -- known to Opportunity's team as 'dust-clearing season' -- occurs in the November-to-January time frame and has helped clean the rover's panels in the past," explained NASA. "The team remains hopeful that some dust clearing may result in hearing from the rover in this period."

In the two weeks since then NASA has reviewed the strategy, it's decided it's not giving up on the Rover until January 2019 at least.