Can't understand UA's attitude, absolutely no reason to hold back on a positive response IF they were to do EWR in 2016, the figures are all there for UA bar a few late bookings / give away fares to increase LF's which in their appraisal will be all but irrelevant.
The key to marketing is consistency & late announcements & uncertainty will have by now put off all the early bookings given "the competition" are all now accepting booking 12M in advance.
However it would be in their interests to hold back on a negative announcement until end of season as it would do nothing to support the marketing of the remaining flights.
Personally on what I have read & seen, then I don't see that UA has derived very much at all from this particular venture to NE England.
The only positive that I can take is that UA have invested a considerable amount in setting up this service, & perhaps they may just take a longer "2 year view" on their investment.
Guess it's fair to say that we can not expect UA to EWR daily at any time soon
