Rotation

I have been hearing people at my shop say they think rotation will only go though AO, BP at the farthest.

It seems to make sense to me that Rotation would knock out sets through Steam Siege leaving only 5 sets in rotation after worlds (EVO, SM1, SM2, SM3, SM Promos). With Sycamore getting an alternate art reprint and these SM sets being so huge, I can’t think of why they would leave more than Evolutions from XY in rotation(I include this set to satisfy Shining Legends references). That would give worlds next year at least 8 sets, possibly 9.

Does anyone on here have input on this?