Cities could bid to stage the finals of the Davis and Fed Cups as part of a revamp of the team tennis competitions.
The Davis Cup final may also be reduced from three to two days, with matches shortened to best-of-three sets, under proposals from the International Tennis Federation (ITF).
The Fed Cup world group could double to 16 teams to match the men's event.
"This is part of our mission to make the appeal of tennis broad and wide," said ITF President David Haggerty.
Tennis chiefs would be adopting the NFL's Super Bowl model on venues, by selecting cities in advance rather than the choice of one of the finalists based on the draw.