...and since we're speculating...
We will all be perfect so naturally, each of us will be good singers and will be able to learn any musical instrument or invent new ones. There will be no more sad "cryin' in your beer" songs, every song will have a happy ending.
Everyone will be special and no one will stand out as more interesting or talented than anyone else. Every perfect person will be able to build a home made of the perfect materials that have been produced perfectly so there won't be any need for repair and maintenance of anything. We'll figure out a solution for every problem with our perfect minds.
When we walk through a grove of Coconut palms and a coconut falls on our head, there won't be any pain. If we happened to notice there has been an injury to our skull, we'll know just what to do and no matter how severely our skull has been cracked, it will immediately heal back to perfection.
The animals will be peaceful and when our favorite pet Lion or pet Dolphin succumbs to the ravages of old age, suffers and eventually dies, we won't shed a single tear because crying is a thing of the past. We'll simply dispose of it's body and just get a new one.
Language will be the same all over the world so one will have an interesting accent or a unique colorful way of phrasing things. When we visit other lands, we'll feel right at home because everyone everywhere is in unison and we all do things the same way. We will all be in agreement about everything at all times so eventually, we won't even have to speak to each other because everyone will have said all there is to say.
Won't it be nice....I can't wait.