The A380 procedure is an ATC local instruction, it won't be published anywhere. If we can reduce delay and increase runway utilisation by doing an 8 mile gap using an RNAV approach instead of 15 miles using an ILS then that's what will happen.
By not accepting an RNAV will probably mean you miss out on one maybe 2 places in the sequence.
I remember the expect a 20 minute delay instruction, I don't know what happened to that. Will try and find out.