Future Bulma

Future Bulma is the alternate timeline counterpart of Bulma that appeared in the special, Dragon Ball Z: The History of Trunks, and the tail end of the Cell Games Saga. She is the widowed mother of Future Trunks, and aside from her son, is the last surviving member of the Z Fighters in her respective timeline. She played a small and largely unseen, but very important role in the Trunks Saga through Perfect Cell Saga, creating the Time Machine that enabled Future Trunks to go back in time in the first place and warn everyone of the Androids.

Background
Up until the Trunks Saga, Future Bulma's biography was exactly the same as that of her mainstream counterpart. In August of Age 764, she watches Future Son Goku traveling back to Earth via Instant Transmission and killing Future Frieza and Future King Cold.

Two years later, Future Bulma is seen outside the Sons' house as Future Goku dies from a heart virus, holding the six-month-old Future Trunks in her arms. Six months follow Goku's tragic death, two killer androids attack on the 12th of May, Age 767. All of the Z Fighters with the exception of Future Son Gohan are murdered by the robotic killing machines, and thus a new apocalyptic age dawns on Earth.

Thirteen years later, after Gohan is killed, Bulma devised a plan to defeat the Androids that are attacking their world: She would send her son back in time and solicit Past Goku's help in defeating the Androids, since he never even got a chance to fight them at all in her time. It took some convincing, but Future Trunks eventually agreed, but for his own reasons (whereas Future Bulma merely wanted the satisfaction of knowing that at least one timeline was saved, Trunks intended to find a weak spot in the Androids, so that he may not be able to revive those already dead, he could at least save those still alive). Finally, four years later in Age 784, the time machine would be completed, and Trunks would make his voyage into the past.

Personality
Due to the apocalyptic world that she raised her son in, she seemed much more loving, caring and serious than her mainstream counterpart, who was happy and easy-going. She was easily the wiser of the two remaining Z Fighters, attempting to convince Future Trunks to not attack the Androids head-on, and instead use the time machine, because he may be a Super Saiyan, but so was Gohan, and he failed.

Anime Filler
Later, when Future Trunks returned from the past, Bulma was both astonished, and not astonished at the fact that Goku died anyway by sacrificing himself to save the planet (her exact words were "That sounds just like Goku"). She was completely astonished at how Vegeta had defended her son when he died. Later, when the Androids were on the move again, Future Trunks went to fight, and this time, she believed in him, and merely asked him to be careful.

Finally, as Trunks was preparing to go back in time once again to tell his friends that he managed to beat the Androids, Future Cell, in his first form, attempts to steal his time machine. Future Bulma is last seen teasing Trunks about a new girlfriend, but quickly goes inside when she sees how serious her son is.

Video Games
Future Bulma appears in the following video games:
 * Dragon Ball Z Supersonic Warriors 2
 * Dragon Ball Z Shin Budokai - Another Road.

Knownable Relatives

 * Dr. Brief (Father)
 * Mrs. Brief (Mother)
 * Tights (Older Sister)
 * Future Vegeta (lover)
 * Bulma (Alternate Timeline Counterpart)

Voice Actresses
all information on Future Bulma came from http://dragonball.wikia.com/wiki/Future_Bulma
 * Japanese :
 * English :