Detroit skipper Jim Leyland, left, and St. Louis manager Tony La Russa walk in from the field at Busch Stadium after was Game 4 of the World Series is postponed Wednesday.

ST. LOUIS — Eventually, the World Series will resume. It's just not certain when.

Baseball came up with a plan after Wednesday night's rainout to push back the schedule in St. Louis by a day. But more wet weather was in the forecast, meaning additional revisions might follow — perhaps delaying Game 7 until Nov. 1, only the second time the Series would spill past Halloween.

As of now, Game 4 was reset for tonight at Busch Stadium, with Game 5 to be played Friday night.

Will there be a travel day Saturday?

"That has not been determined exactly how they'll handle that," said Jimmie Lee Solomon, executive vice president of baseball operations in the commissioner's office.

Prime-time television ratings are lowest on Saturday night — so low, that starting next year the World Series is to start on a Tuesday night instead.

Another consideration in revising the schedule is whether Fox would want a World Series game opposite "Monday Night Football" on ESPN, which features the New England Patriots at the Minnesota Vikings.

The latest-ending Series was in 2001, when it was pushed back a week following the Sept. 11 terrorist attacks. Game 7 was played Nov. 4.

Here are some of the scenarios:

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No More Rainouts and No Travel Day: Game 4 tonight in St. Louis; Game 5 Friday night in St. Louis; Game 6 Saturday night in Detroit; Game 7 Sunday night in Detroit.n

No More Rainouts and Travel Day: Game 4 tonight in St. Louis; Game 5 Friday night in St. Louis; Game 6 Sunday night in Detroit; Game 7 Monday night in Detroit.n

Thursday Rainout and No Travel Day: Game 4 Friday night in St. Louis; Game 5 Saturday night in St. Louis; Game 6 Sunday night in Detroit; Game 7 Monday night in Detroit.n

Thursday Rainout and Travel Day: Game 4 Friday night in St. Louis; Game 5 Saturday night in St. Louis; Game 6 Monday night in Detroit; Game 7 Tuesday night in Detroit.n

Thursday and Friday Rainouts and No Travel Day: Game 4 Saturday night in St. Louis; Game 5 Sunday night in St. Louis; Game 6 Monday night in Detroit; Game 7 Tuesday night in Detroit.n

Thursday and Friday Rainouts and Travel Day: Game 4 Saturday night in St. Louis; Game 5 Sunday night in St. Louis; Game 6 Tuesday night in Detroit; Game 7 Wednesday night in Detroit.