According to VancouverFilm.Net, The CW has confirmed January and February 2021 premiere dates for "The Flash", "Batwoman" and a whole lot more:
2021:
FRIDAY, JAN. 8
8 pm Whose Line Is It Anyway? (New Cycle Premiere)
9 pm Penn & Teller: Fool Us (Season Premiere)
TUESDAY, JAN. 12
8 pm Two Sentence Horror Stories (One-Hour Season Premiere)
9 pm TRICKSTER (U.S. Series Premiere)
SUNDAY, JAN. 17
8 pm Batwoman (Season Premiere)
9 pm TBD
MONDAY, JAN. 18
8 pm All-American (Season Premiere)
9 pm TBD
WEDNESDAY, JAN. 20
8 pm Riverdale (Season Premiere)
9 pm Nancy Drew (Season Premiere)
THURSDAY, JAN. 21
8 pm Walker (Series Premiere)
9 pm Legacies (Season Premiere)
SUNDAY, JAN. 24
9 pm Charmed (Season Premiere)
MONDAY, FEB. 8
9 pm Black Lightning (Season Premiere)
TUESDAY, FEB. 23
8 pm The Flash (Season Premiere)
9 pm Superman & Lois (Series Premiere)
Returning dramas for Spring/Summer 2021 include "DC's Legends of Tomorrow", "Dynasty", "In the Dark", "Roswell, New Mexico", "Stargirl" and "Supergirl"...