First as a reply to the previous post, MAH4546, I guess you mean AY (Finnair) instead of LY (ElAl).
The first new intercontinental destination will be Hong Kong (HKG) in February operated with Finnair via BKK, as Thomas wrote. LY doesn't fly to HEL anymore, so there aren't any intercontinental airlines outside Europe serving HEL.
Delta doesn't fly to the Nordic countries anymore, they stopped their flights to Stockholm a few weeks ago due to NYC events, as did AA.
I think at least some Asian airlines could have potential at HEL..tough it's hard to come to Finnair's strong home market..
Leaving on a Jetplane...