Yes, embryo donation for stem cell research is a possible fate for surplus embryos. By choosing donating them for stem cell research, their cells can be used in research for tissue and organ development in vitro, which could help save lives in the future.
Read the full article on: What is embryo donation and adoption and when is it recommended? ( 62).

Andrea Rodrigo
B.Sc., M.Sc.
Bachelor's Degree in Biotechnology from the Polytechnic University of Valencia. Master's Degree in Biotechnology of Human Assisted Reproduction from the University of Valencia along with the Valencian Infertility Institute (IVI). Postgraduate course in Medical Genetics.