Prime Minister Malcolm Turnbull will unveil a reshuffled frontbench on Monday afternoon that boosts the number of Nationals MPs in the ministry and is tipped to promote younger conservative talent.

The changes, driven by the loss of Assistant Ministers Wyatt Roy and Peter Hendy and the likely loss of Tourism Minister Richard Colbeck, will be announced after the Liberal party room and then Coalition party room meet in Canberra for the first time since the July 2nd federal election.

Several Coalition MPs told Fairfax Media they expected colleagues to vent their anger about the government's $6 billion package of superannuation changes contained in the May budget, with particular concern to be raised about a proposed $500,000 cap on non-concessional super contributions, which has been backdated to 2007.

Liberal campaign director Tony Nutt​ and pollster Mark Textor​ will also address the gathered MPs about the Coalition's campaign and, in the words of one, "they will have to show remorse" for the party's reduced majority.