Hi Momentary Lapse,
"When will the ILS be back on 23?" Now THAT is a fair question.
"World class airport? When will the ILS be back on 23 at this world class airport?" Now that is a very different question. It is a question with an agenda beyond seeking a calendar date in reply. That is why I consider a robust response to be warranted, although I respect the right of others to disagree.
With regard to the actual introduction date for the new ILS, I would be happy to post the answer if I knew it. The ILS will be introduced once it has been thoroughly tested and approved by the certifying authorities.
Cheers, SHED.