Attorney-General George Brandis is leaving the Senate to take over as UK High Commissioner

(R) George Brandis and (L) Prime Minister Malcolm Turnbull. Photo: Michael Masters/ Getty Images.

Attorney-General George Brandis is reportedly leaving the Senate to take over as the next UK High Commissioner.

Australian Prime Minister Malcolm Turnbull is expected to announced the news this week as part of a cabinet reshuffle.

The Queensland Senator, who has held the AG role since 2013, would replace Alexander Downer in London in the role, which is one of the most prized appointments available to the Australian government.

Brandis’s replacement is unknown.

Likely candidates for promotion in the reshuffle include Social Services Minister Christian Porter, a former Western Australian attorney-general and treasurer, and Employment Minister Michaelia Cash.

Among other changes reportedly being consider by the PM include returning former minister Sussan Ley to the cabinet after her resignation early this year amid an expenses debacle.

A position must be also filled for newly-elected Nationals deputy leader Bridget McKenzie. Former Special Minister of State Scott Ryan will need to be replaced after he took over from Stephen Parry as Senate President, and it is unclear if Industry Minister Arthur Sinodinos, who is battling cancer and on leave, will continue in his role.

Immigration Minister Peter Dutton will also be sworn in as Home Affairs Minister this week when his new super security department begins operation.

The reshuffle provides an opportunity for Turnbull to start 2018 with an fresh, revitalised cabinet.

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