It was proposed at the end of March, Ryanair has been talking about Lisbon for a while so it's a bit premature to say routes are about to be announced when negations have probably only just started. Not all those routes are guaranteed either but if a deal with ANA is reached I wouldn't be surprised to see Cork included to go up against Aer Lingus.
Talks began in mid 2011 for a base by summer 2012 but the 25 min turnaround could not be achieved in the international terminal at LIS. Ryanair wanted to use the domestic terminal where it could be achieved but airport operator refused and things have being stalled until the recent developments.
Still nothing on the Cork Airport website about OLT route yet