Morgan said the party had been approached by "pretty outstanding" candidates interested in standing in electorates.
"While personally I don't want to go near Parliament without a significant mandate for progress, there are younger and regionally orientated people already among our membership who would form a great ongoing parliamentary team."
Labour has called on new Prime Minister Bill English to call an early election, accusing him of "running scared" in choosing not to stand a candidate in the February 25 Mt Albert by-election.
English has said he will give further thought to the general election date early this year.
A trained economist, Morgan amassed a fortune after selling his economic forecasting firm Infometrics in the late 1990s, later set up Gareth Morgan Investments, and received a windfall after a $75,000 investment in Trade Me, set up by his son Sam, turned into $47 million.
The reaction from established political parties to Top has been mixed. Green Party co-leader James Shaw and former Prime Minister John Key said it would be difficult for Top to get the 5 per cent of the party vote required to enter Parliament.
At the 2014 election, Craig's Conservative Party received 95,598 votes and still fell short at just under 4 per cent of the party vote.