That arguments sounds like a classic religious argument against evolution. 'If we came from the monkeys, why aren't currently monkey's turning into humans' like argument.

The answer is evolution is more like a fork/branch than modifications on the trunk. Mutations happen all the time, every cancer victim, is a victim of mutation. But when the gene begins to spread and take root rapidly, at some point we get that gene dominant among a species.

A lot will happen over the next 200,000 years. We will likely change in major ways.

But if you were to take this whole singularity thing seriously we may not even need all that. By 2045 you can live on eternally on the cloud.