The Legacy website explains most of the plans and as to what structures will be kept:
http://www.londonlegacy.co.uk
They big one though is of course the usage of the Stadium.
It has to be kept as an athletics venue, available for use and training whenever required. Capacity will be significantly reduced, but it will remain the third biggest stadium in London (behind Wembley and Twickenham).
The four short listed bids for wanting to take over the stadium with the above stipulation are:
- West Ham Football Club
- Leyton Orient Football Club
- A company representing the NFL
- A company with the interest of holding an F1 race