HEL-LHR in Business - new seat and old seat and aircraft swaps
I am looking into GOT-HEL-LHR in J in August. The evening flight seems to feature the old business class seat, whilst the morning one the new seat.
Does this normally stick or are aircraft swaps common? I could stay in HEL overnight and take the morning flight as I'm really curious, but it would cost me more and it might even be a waste of money if they end up swapping aircrafts.