You will always be happy and content, and you will be forever free from sin. Your happiness however will not come from a sensory experience with the world around you. Alot of people buy into the populor myth of heaven being a “place” where all your material dreams come true. This is not so. Though we might experience perfection in a particulor place, our happiness, on the other hand, will be fundemetally rooted in our eternal relationship with God. In other words, heaven is a spiritual experience; an experience of eternal fullfillment. We go back into Gods being.
However; If you subscribe to the platonic veiw of heaven, you might describe it as a perfect version of our world, or rather the perfection of being.