User blog comment:Tony 1998/What Do You Want To See in GTA V's Story Mode Update?/@comment-24492773-20140201140736

Maybe a DLC depicting the fall of the Grove Street Families will intrigue most fans which played San Andreas before. This is my idea:

After the events of SA, the Aztecas were split into two factions, one anti-drugs (led by Cesar) and another who wants to sell drugs. The drug-selling faction sought aid from the Ballas (who were rapidly rebuilding) and the Vagos. These three gangs went into a war with the GSF and the "good" Aztecas and the GSF lost. After the defeat, CJ, Sweet and Cesar all moved out of Los Santos.

The Aztecas were then screwed over by the Vagos and were chased into the countryside. This explains the absence of the Grove Street Families, Aztecas operating out of Blaine County, CJ's absence, people referencing Grove Street as former Families turf and more.

Another interesting idea would be someone (his son, maybe?) seeking revenge over Devin Weston's death (if Option C was canon) and M, F and T needs to search for Niko to help them out. For this sotry to be truly epic, Rockstar needs to open up ALL cities explored in the GTA games.