2) Platform issues at Clapham - apparently the 442s are unable to use a couple of the platforms there. Quick Update (added 5th April) Updating from onboard a canal boat(! Tom informs me that Angel Trains have offered SWT the 442s back.
Angel Trains will cover the refurbishment costs and SWT would just be paying the lease.
If they're handling the deal with Southern (as opposed to the train's owners, Angel Trains), then they're probably already in discussions and may already have closed a deal.
However, I want SWT to know that their decisions DO have an impact on their customers, and that not all of their customers are happy about this withdrawal.
There's a lot of rumours, and some news flying around at the moment: 1) Gat Ex - will continue, but with peak trains running to Brighton.