Well, if his first official engagement, at St Pauls today for a commemorative service for the Battle of Britain is anything to go by, Mr Corbyn isn't going to turn over a new leaf. A distinct lack of respect IMO.
And if he doesn't swear an oath of allegiance he won't become a member of the Privy Council, which means he won't be at many important briefings. This is the politics of political anarchy. Engage with the system and change it from within, you can't achieve anything if you stand outside of the room... Wonder if he knows how many Labour supporters are ex/current armed forces, and how many more votes he's just tossed away?