Having SAS operating schedules into SEN is a nice dream, but that's all it is.
As far as Air Karnten is concerned they are saying that ticket sales will not commence until April so it's a bit hard on them to assume they will not have a decent reservations website up and running by then. Contrary assumptions cannot be made based upon their current web page, which at the moment seems to be aimed just at generating interest in the routes on offer. It will be interesting to see their response to emails from that current page.