"The final price tag would be determined by both the school board and the county commissioners - a decision that must come no later than April for the bond to appear on the November ballot."
During the ballpark discussions this is how it started out " We need a decision by May to get it on the November ballot". And THAT was for a general election ballot. This is the only question to be on the ballot.
My guess is that they could wait until August like the ballpark supporters did. The only problem with that is that they then expose themselves to a long time watching the ads from the "cut spending everywhere" crowd.
But they certainly CAN wait for a final number - probably until August
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