There are those who believe in "Universal Salvation" or "Universal Reconciliation."
There were followers of Pastor Russell who were high-ranking members of the Bethel family back in the day, like "Professor" F. H. Robison, who was also a synesthete and author of the series "Color and Character" that appeared in The GOLDEN AGE in 1920 and 1921. Paster Russell didn't "ride herd" on the intellectual wanderings of Bible Students the way today's Watchtower Society does, and in time Robison came to accept the doctrine of Universal Salvation and he left Russell's group.
"Color & Character: A Contemplation of the Four Divine Qualities" by F. H. Robison is available from LULU.com, but is a reproduction of Robison's article "Color & Character" with a biography of F. H. Robison. The title was expanded to remove any hint that it was a racist screed, and there is almost no discussion of the doctrine of Universal Salvation.
There is some further discussion of Robison and this book on this discussion board, as the SEARCH tool will reveal.