SOCR, I havent seen any such sources... even if this detail is revised, it will definitely be EU.
If you have listened to GLs commentary on the ROTS DVD, you'll hear him joke that having the DS at the end of ROTS was a "bit of a stretch" and imagines that they may have had problems/delays
He merely put it in to tie the PT to the OT(as the whole of that last montage in ROTS does).
* * *
My Dark Lord book is making its way across the pacific ocean...it should be here in a cpl of weeks damnit