I believe the only slim ray of hope for not "wasting" Europe with ORD-DEL is an idea first posted by
christep: it will be interesting if someone tries to do a OWE like this: ORD-DEL-SYD-SCL-ORD. The rules say "A MINIMUM OF A 4 CONTINENT FARE MUST BE CHARGED". so the question is: would such an itin be a ONE4 or a ONE5? The rules don't say, so
christep thinks that maybe it will fly as a ONE4, and thus Europe would not be "wasted". Personally I think AA will call it a ONE5, but readily adimit that it will not be clear until tested.
...and, not that it matters much, but to make it even more interesting, as far as the OW Planner is concerned ORD-DEL is transpacific.