The future of the Cork - Roscoff service lies very much with Brittany Ferries at the moment , so its a case of wait to see what they will do as they have said nothing yet.
While Fastnet Line may expand in the future (something I myself would like to see) for the moment getting the Cork - Swansea service bedded down is the top priority and all resources and efforts are being applied there , while potential future expansion may be as much as 5 years away , if the Cork - Swansea exceeds expectations (which it may well do) it may well come sooner , but I myself would'nt see it happening until 2012 at the earliest (but I would'nt mind being proven wrong on that).
Nothing in terms of expansion has been discussed at an offical level at Fastnet Line so far , but who knows what the future holds , Fastnet Line is commited to Cork and its future prosperity so as has been demonstrated so far , anything is possible.
I myself also feel that it is the 1 sailing per week timetable that is dragging down the passenger numbers on the Cork - Roscoff in that the timetable offers no flexability and unless you can structure your travel arrangements into one week modules based on Saturday sailings then the service is of no use to you.
The ideal timetable would have 3 sailings per week , an example would be depatrures from Cork on monday , wednesday and saturday in the peak and wednesday and saturday off peak using smaller well fitted out ships (Bretagne size) , this would offer enough flexability to encourage growth on the route.
As I have said the final decision on this lies with Brittany Ferries , and it must be kept in mind that Brittany Ferries has always been good to Cork so lets wait to see what they come up with , and while I am saddened to loose the Pont Aven from Cork at least the service is not being cancelled which they could just as easily have done.