Lets not get confused here. No changes proposed for ALL Bill Dance Signature lakes. Many of those lakes, such as Chickamauga, are major reservoirs and there will be no changes regarding crappie. Proposed changes I'm aware of were only for some of the smaller lakes (although I don't know which ones are Bill Dance lakes).
This is from the news release of the fishing reg changes that make mention of crappie passed in Sept. 2023:
The sportfish regulations include changes to TWRA fishing lakes in West Tennessee. The daily creel limit and the length limit will be removed for crappie at Lake Graham, Glenn Springs, Carroll, and Garrett lakes to improve size structure and harvest success. At Carroll and Garrett lakes, both will have no daily creel limit on largemouth bass, but only one can be over 18 inches. This is to promote harvest of smaller bass to improve size structure.
For the Cumberland Plateau Region, changes for small lakes and ponds were made for Bridgestone/Firestone WMA, Indian Boundary Lake in Monroe County, and Madisonville's Lake Kefauver. These are regarding the size and creel limits for largemouth bass, bluegill and redear sunfish, catfish, and crappie. A youth only designation at the Bridgestone Firestone ponds was removed. This will allow for more fishing opportunities for a broader group of license holders.
Generally new Fishing Guides are published/distributed sometime in February.