Future of the sloths

I think that in the future of around 300 years, rainforests are going to become drier because the forest fires will kill many trees. And this will change the way sloths live. Currently sloths are one of the slowest creatures on earth, and they find safety in the trees. Since there will be less trees, sloths might not be climbing anymore to get around. Because of this, sloths need to be quicker to get away from predators on the ground. This means they will most likely have shorter arms, legs and claws that used to help them climb in the tress, because if they are not going to climb in the future, they would just slow a sloth down. Also, sloths currently eat leaves in the trees. But with not many trees left in the future, sloths will have to adapt to eating something new, like berries.