Hopefully this isn't another false dawn.
I would assume it will operate twice a day with a schedule roughly like
07:00-08:00 ORK-DUB
08:30-09:30 DUB-ORK
10:00-11:00 ORK-DUB
Operate routes ex-DUB
21:00-22:00 DUB-ORK
That would allow for connections to most TA flights from Dublin and from the early morning arrivals from New York, Boston and Chicago. It would be a problem for San Francisco, but the alternatives would to go 3x per day or to leave a very long layover for arrivals from the early flights. I can't see 3x per day working and adding the layover to the early flights would probably lose more passengers than would be gained from San Francisco.
It would be nice to think that it could be used to beef up the schedules out of Cork when it's not flying to Dublin, but I think it more likely that it would operate routes from Dublin