Yes, really, moreover, this is the main and priority task in order to colonize other planets. Since our body is imprisoned only for life on Earth. And this will entail technological immortality and, in general, changes in humanity as a whole. In the next 100 years. Loading / unloading consciousness (transfusion from one body-vessel to another) with modified characteristics. But, this technology is unlikely to be made public for the general public. Since the ability to gradually copy the brain using nanorobots, i.e. gradual copying of the control center of the human body will put an end to all religions. Imagine - you close your eyes, and you open them in a new body, move your hands, and the old body moves - i.e. the gradual transfer of functions / processes of the body will preserve the indivisibility of consciousness. That is, the new body will revive in proportion to the disconnection of the old brain lobes.
Realistically from a technical point of view. Already, scientists are able to replace certain genes in human DNA. This technology has thundered very loudly in the past six months, called CRISPR. It consists of a special protein that cuts out the defective gene and inserts the revised version. With its help, the identified gene disorders can be corrected at the early stages of embryo development. You can read more about the creation of this system, for example, here.
However, several factors prevent this. First, the technical one: the system, despite all the improvements, is still wrong. Secondly, the ethical side - in fact, a person interferes with an already developing person, and until recently research was banned almost everywhere except China, and only very recently it was allowed in the UK, and, most likely, will continue to be allowed.
Therefore, within twenty years, mankind will have a new cure for diseases that are still considered incurable.