Soon Forgotten was created in 1996.
The Forgotten Enemy was created in 1949.
Someday Soon - Ian Tyson song - was created in 1991.
I would tell you, but if I remembered, they wouldn't be forgotten anymore, and your question would be impossible to answer.
The cast of The Forgotten Genocide - 1975 includes: Mike Connors as Narrator
his handkerchief
"Soon, you will have forgotten him" and "You will soon have forgotten him" are both grammatically correct; however, while the first sounds better, neither sounds very natural. A better phrasing, if it fits the context, would be "You will soon forget him." Alternatively, you could keep the motherly tone by saying "Soon enough, you will have forgotten (all) about him," or a variation of the like.
Forever Is Forgotten was created in 2004.
Forgotten Silence was created in 1993.
Forgotten Tales was created in 1999.
Forgotten Sunrise was created in 1992.
The Forgotten Frontier was created in 1931.
Forgotten Worlds was created in 1988.
Forgotten Tomb was created in 1999.
The Forgotten Planet was created in 1954.
Forgotten Fire was created in 2002.
Forgotten Rebels was created in 1977.
Not Forgotten - TV - was created in 2005.