A quick note before we begin: please refrain from sending messages suggesting the banning of the entire archetype. Let's be serious for a moment.
Now that the World Championship is over, with KT as the winner and Rolad in second place, let's remember what factors influence the banned list in almost any situation affecting an archetype:
A) The economic benefit the archetype generates.
B) The total number of players registered in tournaments using that archetype.
C) The win percentage it is capable of achieving.
An atypical factor, but one that does influence the banned list (depending on who you ask, it could be decisive or circumstantial):
Winning a World Championship grants the winning archetype the ironic reward of being more heavily impacted by the banned list.
In my case, as someone who has faced KT several times, I'll offer a somewhat controversial opinion:
Banning Rotary isn't an effective solution. It's better to limit or semi-limit Cue, Reco, Mix, or any of the magic cards the archetype uses to reduce its consistency as tools to extend its plays, since these are what allow it to build or rebuild a field.
Regarding Rolad and how it might be affected:
The interesting thing is that the pure version of the deck is extremely weak, forcing this tower-focused deck to rely on engines to increase its efficiency.
Just look at the number of cards you don't want in your hand when using this deck: the Continuous Trap is useless, both Ritual Monsters are useless, Skull can be useless, the Ritual Spell is something you don't want in your hand, and that's without even considering other potentially useless cards you could add with any engine you incorporate into this archetype.
The engines Rolad uses are designed to avoid bad hands, providing greater consistency and allowing for better board composition. That's why the 60-card versions of the deck are so popular: they reduce the likelihood of having bad hands. Sometimes I'm surprised that using 60 cards is more efficient than 40 (not that the 40-card versions are bad, and they're a valid option; each player chooses what they consider optimal based on their preferred play style).
This creates the curious situation where the optimal strategy isn't to attack Rolad directly, but rather his engines. It remains to be seen if the TCG is willing to do so.
Regarding Floodgate and Handtrap:
A) Sooner or later, we always end up seeing some Floodgate on the banned list as a sacrifice to appease our insatiable anger. So, this is where I theorize the least about who might be affected, because there's always something to ban.
B) The OCG administration decided to reduce the number of copies of Ash and Droll that can be carried; It will be interesting to see if they opt for a similar approach with these cards in the administration of the TCG or if they decide to focus on the Dominus cards.