Mystery configuration for TK...

Have booked a c-class flight from AMS-IST (TK1954) on 16/10/2022. According to TK website, airport website etc. this is operated on the 330-300. However, as opposed to the 330-300 seatmap on seatguru, this shows up on the seat selection on TK website and on Expert Flyer(!);

-A business class with 7 rows of which row 7 has 4 seats instead of the standard 6 seats. (The 333 for TK has 5 rows in 2-2-2 config)
-A total number of 43 rows all the way to the back. (The 333 for TK has 40 rows in 2-4-2 config)

Can anyone discover which aircraft this flight will be on? I have not found any matching aircraft. For all other days on the same flight number, the seatmap matches seatguru. Could it be a charter plane? Thanks so much