The destination of a Darwinian is obviously to accept another material body.
Actually, two forms of evolution are accepted.
Micro evolution, according to environmental changes ,and an evolution of consciousness,traversing throughout the universe in different bodies ,high ,low and mediocre, which can culminate in seeing the true equality of all living things , and from that platform advance further in consciousness to understand the supreme personality of Godhead  and His consciousness,  which is eternal bliss and knowledge, sat cit ananda