People is the plural of person that's most commonly used to refer to multiple humans. But people can also be used as a singular noun to refer to a population or particular community.
In this case, the IS contraction is used and so the meaning of the sentences does not change. it is still expressing a future reference. it is important not to get confused with the possessives (´s) otherwise this sentences would not have a clear meaning e.g Nobadys´.
Nobodys´s and nobodys are not grammatically correct options. so they should be discarded at once. </span><span> </span>
