Hi, EK flyers; somewhat new to EK here. We have flights in F between DXB -CPT and JNB - DXB on the 777 with a 1-2-1 configuration. I noticed they blocked two seats and have two fewer seats available in the F/A fare buckets on each flight. Is that for a potential last-minute aircraft change to the 1-1-1 configuration? Our flights are in April.