Recent speculation and hypotheses point The Thing house to be in SS22.
But I understand why some folks didn't like Assimilation due to the overuse of puppets/animatronics; they work best when A] the line is pulsed, and B] they aren't the focal point of the attraction. With option A, it's obvious because they can be reset when no one is around, and, therefore, everyone gets to experience the effect. With option B, the problem of overuse can be the same as the overuse of blood and gore in an attraction; too much of it is overkill and the rest of the house will suffer because of it (but only if the rest of the house isn't on par with the standout feature, which, 9 times out of 10, it isn't, thus the house fails).