Smith did not say Wednesday what exactly he'll do to the track, but an announcement could come in about two weeks.
Fans have clamored for him to return it to how it was before a 2007 reconfiguration added variable banking in the corners. It opened up lanes for two-and-three wide racing, and fans preferred tight lines that lent to bumping and banging.
Smith became open to changes after poor attendance at the March 18 race. The speedway says it seats 160,000, and the grandstands appeared half empty during that race.
Smith says any changes will be completed before NASCAR returns to Bristol in August.