A concept for YOUR future series of speculative fiction. You can write those books during retirement. 😀

Human kind is going extinct on Earth.

Elon Musk and others launch as many long range space craft as possible. Towards as many remotely feasible planets and moons that might be able to sustain life.

The ships are unmanned — aside from frozen sperm and eggs. This seems far more possible than sending folks cryogenically frozen.

Those (few) ships that survive the trip after hundreds of years at sub-light speed are possible story plots.

After landing, Androids start in vitro humans growing. They attempt to adapt the planet for homo sapiens.

This is something similar to the TV series Silo.

It sounds like Allen M. Steele traveled forward into the future to STEAL this idea from me in his book Arkwright (2016). 

There may have been other literary thieves. 😀