Finnair Plus - JFK-HEL: Is the new config in J used at all?

I am flying in Dec, and the seat map shows the old (not staggered) configuration in J. I checked the dates around my flight, and they all seem to be the same.

Is this seasonal? Is this an anomaly? Does AY swap in other equipment at the last minute?

They do swaps, of course, if operations do require. But JFK is definitely NOT only old as I've flown new config J 330s on this route many, many times...on another note, they also fly the new config to HKT which is 100% leisure destination..with that being said, JFK used to be AY's flagship route but those days are long gone..sometimes it feels more like Moscow-JFK rather than Helsinki-JFK, honestly..

Is this seasonal? Is this an anomaly? Does AY swap in other equipment at the last minute?

A330 with new J are flying during winter schedule to BKK, HKT, KBV, LPA and DEL.

A330 with new J are flying during winter schedule to BKK, HKT, KBV, LPA and DEL.

What a waste of quality equipment..

What a waste of quality equipment.

High demand to warm destinations need max capacity (297 seats).

Isn't OH-LTR also new J?
It is flying on regular routes, NGO, ICN, PEK, NRT and JFK during last week.

It has 10 rows of J, maybe that's what's saving it from the destiny of the tourist trail...