VS30 Aircraft Change?

Hi
I am due to fly back from Barbados on the VS30 on 22nd June. When I originally selected my seats the map showed the normal premum economy upper deck layout. However, when I have checked my seata are still okay this week the front half of the upper deck is now showing as upper class suite and row 74 has moved to the back of the upper deck (still absolutely fine with me).
Does anyone know if if this is a known aircraft change, what plane it might be and if this could mean getting the new PE seats?
Any help would be greatly appreciated.
I am due to fly back from Barbados on the VS30 on 22nd June. When I originally selected my seats the map showed the normal premum economy upper deck layout. However, when I have checked my seata are still okay this week the front half of the upper deck is now showing as upper class suite and row 74 has moved to the back of the upper deck (still absolutely fine with me).
Does anyone know if if this is a known aircraft change, what plane it might be and if this could mean getting the new PE seats?
Any help would be greatly appreciated.