Examine the passage for a sentence-structure revision. Paragraph 1: (1) A zoning panel expects its decision to remain unchallenged. (2) If an applicant [will challenge] the decision, the panel would reopen the public record. Paragraph 2: (3) Any challenge would have to be filed within thirty days. (4) The panel has reserved a tentative hearing date. Which replacement for [will challenge] best expresses the remote future possibility?