You might have seen the Production Schedule I posted, with cast info announced during those weeks.
Estimated Weekly Production Schedule: July 2017-January 2018:
Best guesstimates for the episodes taped each week, along with casting changes announced:
Week of 7/24/17-7/28/17 # 13245-13252 (airing 12/28/17-1/9/18)
Week of 7/31/17-8/4/17 # 13253-13260 (airing 1/10/18-1/19/18)
Week of 8/7/17-8/11/17 DARK WEEK # 12
Week of 8/14/17-8/18/17 # 13261-13268 (airing 1/22/18-1/31/18)
Week of 8/21/17-8/25/17 # 13269-13276 (airing 2/1/18-2/12/18) **KYLER PETTIS (Theo) exit scenes posted (8/22)
Week of 8/28/17-9/1/17 # 13277-13284 (airing 2/13/18-2/22/18) **LISA RINNA (Billie) return confirmed (first taping this week; by EW, 9/1) **LEANN HUNLEY (Anna) last possible week to work (per interview, worked July/August)
Week of 9/4/17-9/8/17 DARK WEEK # 13
Week of 9/11/17-9/15/17 # 13285-13292 (airing 2/23/18-3/6/18)
Week of 9/18/17-9/22/17 # 13293-13300 (airing 3/7/18-3/16/18)
Week of 9/25/17-9/29/17 # 13301-13308 (airing 3/19/18-3/28/18) **BRANDON BEEMER (Shawn Douglas) return confirmed (per 3/26 script); **MARTHA MADISON (Belle) return confirmed; **HONG KONG HOTEL EXTRAS (per casting call; first tape date 9/26); 13306 (3/26/18) cast list (per script cover): Abigail, Chad, Doug, Eli, Gabi, Hope, JJ, Julie, Lani, Rafe, Shawn, Stefan, Security Chief; set list: Abigail's Hotel Room, Detective Area & Interrogation Room, Hong Kong Lobby, Hong Kong Police Office, Horton Town Square, Stefan's Hotel Room.
Week of 10/2/17-10/6/17 # 13309-13316 (airing 3/29/18-4/9/18)
Week of 10/9/17-10/13/17 DARK WEEK # 14 **GREG RIKAART (new character) casting confirmed (by TVLine, 10/10)
Week of 10/16/17-10/20/17 # 13317-13324 (airing 4/10/18-4/19/18)
Week of 10/23/17-10/27/17 # 13325-13332 (airing 4/20/18-5/1/18) **BEGIN MAY SWEEPS (begin # 13329, 4/26/18) **CHAD WITH RED KNUCKLES (taped 10/25 per Terry James video)
Week of 10/30/17-11/3/17 DARK WEEK # 15
Week of 11/6/17-11/10/17 # 13333-13340 (airing 5/2/18-5/11/18)
Week of 11/13/17-11/17/17 # 13341-13348 (airing 5/14/18-5/23/18) **END MAY SWEEPS (end # 13348, 5/23/18) **JEN LILLEY (Theresa) return confirmed (by Soap Digest, 11/17)
Week of 11/20/17-11/24/17 DARK WEEK # 16
Week of 11/27/17-12/1/17 # 13349-13356 (airing 5/24/18-6/5/18) **JAIME LYN BAUER (Laura) return confirmed (per her Facebook)
Week of 12/4/17-12/8/17 # 13357-13364 (airing 6/6/18-6/19/18) **LOUISE SOREL (Vivian) confirms exit (per Daytime Indulgence interview, 12/4)
Week of 12/11/17-12/15/17 # 13365-13372 (airing 6/20/18-6/29/18)
Week of 12/18/17-12/22/17 DARK WEEK # 17
Week of 12/25/17-12/29/17 DARK WEEK # 18
Week of 1/1/18-1/5/18 DARK WEEK # 1
Week of 1/8/18-1/12/18 # 13373-13380 (airing 7/2/18-7/11/18)
Week of 1/15/18-1/19/18 # 13381-13388 (airing 7/12/18-7/23/18)
Week of 1/22/18-1/26/18 # 13389-13396 (airing 7/24/18-8/2/18)
Week of 1/29/18-2/2/18 DARK WEEK # 2
Archive of production schedule, 2014-Present:
http://www.jason47.com/days/productionschedule.html