Toby Melville/Reuters
The big moves to watch out for are shadow Foreign Secretary Hilary Benn and Shadow Defense Secretary Maria Eagle. Both of them voted to extend the RAF's bombing campaign against ISIS into Syria, despite Corbyn's opposition to it and there have been rumours in the press in recent days that they are about to lose their positions.
When Corbyn formed his Shadow Cabinet, journalists were able to find out what was going on by listening through the door of the room he was in, so Labour are taking no chances this time. Corbyn himself came out of his office to tell journalists off for being too close.
Oh my. Corbyn himself comes out of oppo leader's to demand journalists leave the corridor while he conducts reshuffle. Full on teacher mode.
- Harry Cole (@MrHarryCole) January 4, 2016
Jeremy Corbyn has just asked us to leave: "Do you mind not hanging out outside my office door?"
- Sophy Ridge (@SophyRidgeSky) January 4, 2016
The first person through the door is shadow minister for Energy and Climate Change Barry Gardiner. He didn't deny he had been promoted as he left the office with a "smile on his face.
Barry Gardiner just chuckles happily as he's asked if Jeremy Corbyn gave him a new job
- Rowena Mason (@rowenamason) January 4, 2016
Barry Gardiner doesn't deny he's been promoted as he leaves Corbyn office with smile on his face. Chortles.
- Harry Cole (@MrHarryCole) January 4, 2016
This is what Gardiner told Guardian journalist Rajeev Syal - it's a little bit cryptic.
A lot of people come in and out of his office with a smile on their face. I don't think I'll be the only one today. You shouldn't read too much in to that. I think I've probably said enough.
Next in is shadow chief Secretary to the Treasury Seema Malhotra. She doesn't give anything away as she leaves the office.
Seema Malhotra emerges from Corbyn office. Tells us nothing.
- Ross Hawkins (@rosschawkins) January 4, 2016