"I plan on making this last year special," he said in a text message.
The 6-foot-7, 315-pound Fabuluje left TCU last July and transferred to BYU because of "personal reasons."
According to the Fort Worth Star-Telegram, which first reported Fabuluje's plan to return, Fabuluje took classes in Provo, Utah, but had no contact with the BYU football team.
Fabuluje said he hopes to enroll at TCU for this upcoming semester and join the football team before spring practice.
Fabuluje transferred to TCU in 2011 after a redshirt freshman season at BYU. He started 12 of 13 games for the Horned Frogs in 2012, and was an honorable mention selection for Big 12 offensive newcomer of the year.