Yes, there is no indication that Delta is going to make any major near-term schedule changes that would indicate a need for more frames. In fact, the most recent passenger trends (based on TSA throughput data) reached an inflection point about 10 days ago - the 7-day YoY average has dropped from 38% to 34% and the 30-day YoY average has ticked down by 1% (after a pretty steady rise from end of September onwards). Clearly demand is being tempered by the resurgence and - barring control measures - I don't see why this trend wouldn't continue through the winter months (and, optimistically, with a strong recovery starting in the Spring).
That said, Thanksgiving could be interesting as it will draw a lot of new travelers out - and COVID has made travel demand forecasting challenging as the majority of bookings are now made close-in. It is entirely possible that Delta is looking at options to maintain capacity flexibility in the coming weeks.