Ms Wilson confirmed on Saturday she had committed to a four-way debate alongside Premier Ben Carroll, Greens leader Ellen Sandell and One Nation's Warren Pickering.
"'We live in a democracy and ultimately it's Victorians who will decide this election," she told reporters in Werribee on Saturday.
"I'm pleased to be part of that four-way people's forum."
The forum will be hosted by News24 and the Herald Sun.
One Nation leader Pauline Hanson had previously called out Ms Wilson for declining the invitation to debate after the Liberal leader said she wanted a one-on-one debate with Mr Carroll.
Senator Hanson said Ms Wilson was treating the election like a coronation, not a contest.
"If she thinks she has the better plan for Victoria, she should be prepared to debate them and make her case to the people of Victoria," Senator Hanson told News24.
Reversing her initial refusal, Ms Wilson accused the premier of avoiding a one-on-one debate.
"He's scared, and he needs his comfort blankets in the Greens and One Nation in order to stand next to me and take questions from the people," Ms Wilson said.
"Ben, where are you, and why won't you debate me head to head?"
Ms Wilson's announcement comes as her party pulls ahead in the polls less than a month from the November 28 election.
The opposition appears poised to win enough seats to form a majority government, according to the latest Roy Morgan polling.
The coalition is ahead at 29.5 per cent, with Labor at 22.5 per cent and One Nation at 22 per cent.
Some 26 per cent of voters prefer other parties, including 12.5 per cent who expressed support for the Greens and 7.5 per cent for independents.
On a two-party preferred basis, the coalition leads by 56 per cent to Labor's 44.
Polling was conducted by Roy Morgan via SMS from October 26 to 29, with more than 3600 voters canvassed across Victoria.
Despite the result, a Liberal-National coalition majority is not certain due to the highly contested nature of many seats and the threat posed by One Nation, Roy Morgan notes.
Support for One Nation momentarily rose in October following the party's Melbourne campaign launch but has fallen to pre-launch levels in recent weeks.
Looking at a three-party preferred result, Labor leads with 43 per cent, ahead of the coalition at 33 per cent and One Nation at 24.
This is largely due to preferences flowing to Labor from supporters of the Greens, independent candidates and other parties.
With the coalition the clear favourite on a two-party preferred basis, Mr Carroll faces a difficult battle to retain office.
Labor is seeking a historic fourth consecutive term in office in Victoria after Mr Carroll replaced Jacinta Allen in the top job in July.
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