Mr Charupong said the Pheu Thai executive committee would meet in one or two days to lay down an election strategy.
He said the return to politics of 109 executives of dissolved political parties would liven up the elections and also do away with a possible problem over selection of election candidates.
Mr Charupong said he believed Ms Yingluck would again run in the election because people wanted her to return as prime minister.
The Pheu Thai Party leader had words of advice for the Democrat Party. "Don't be afraid of an election," he said. "Don't play a street game. Although you have lost in the last eight elections, one day you might win."
Mr Charupong said that fellow coalition parties yesterday confirmed they would continue working with Pheu Thai. "It is also possible that some of the opposition members would join us," he added.
Deputy Prime Minister Surapong Tovichakchaikul said he also believed Ms Yingluck would run again, but had not talked to her about it.