But just for fun, I did this as a challenge:
For my next lifetime, I will...
Aries: Initiates life on a barren planet.
Taurus: Spends the next lifetime as a tree.
Gemini: Comes back next lifetime as a crow: can't stop telling everyone about it.
Cancer: Sustains the primordial soup of life after Aries is finished.
Leo: Solar flare. What did you expect?
Virgo: Oversees evolution on planet after Aries and Cancer.
Libra: Makes sure that flowers are part of the process after Virgo.
Scorpio: Spends the next lifetime as a great white shark. Just keep orcas away from me.
Sagittarius: THERE's your comet.
Capricorn: Spends the next lifetime as a mountain. Bigger. Better. Famous.
Aquarius: Exists as a different lifeform on the evolving planet. CERTAINLY not as a human.
Pisces: Nope. Not incarnating or doing anything except chilling out for...well, time isn't measured in that reality.