As you've seen the title and the answer is no. This is not a parody of Back to the Future. If you have ever saw my vote than you'll see that I got a lot of votes on the future Mabel and Dipper coming back to tell Dipper and Mabel something. Well lets start shall we
Transcript
Tv: Oh Docotr, I want to stay with you!
Tv: But Avery that can not happen. If you stay with me than you'll die. If I die than there will be a paradox and you'll be here.
Tv: But Doctor no!
Tv: Good bye Avery *Jumps of building*
Tv: We'll be back with, Doctor See.
Mabel: O M G. That did not just happen. Dipper Oh My God!!!
Dipper: What...
Mabel: Did you see what just happened!?
Dipper: Yeah, yeah. He jumped off a building, big deal. Why do you even like Doctor See anyway?
Mabel: He is so dreamy!! *Holds up poster*
Dipper: Bleh, Mabel we did this all before and this show just makes it... you know.... boring.
Mabel: Oh come on.
Dipper: and besides, I'm done with time travel.
(Bright light flashes)
Mabel: What the!
(Future Mabel comes)
Mabel: Woah it me!!! and wait, my hair is up?
Future Mabel: Oh good you guys are here. I was traveling all over the place in differant times looking for you!
Dipper: Why us?
Future Mabel: I don't have much time to tell you. Anyway you must throw Waddles away, so you can create a paradox!
Mabel: What!?
Future Mabel: I know it would be hard for you, but we don't have much time before you-
Dipper: Wait, if your Future Mabel than where am I?
Future Mabel: Um... *starts to get nervous*
Dipper: What happened to me?
Future Mabel: Um it is kinda hard to explain, but oh! Um I think I have something.
(Future Mabel digs threw the back and got something that looks like a hat hooked up with a small contorler)
Mabel: Ooh nice hat!
Future Mabel: Thanks, now set the time to um... July 5th 2012.
(The controler starts to glow and makes a hologram projector and a video starts to play)
-------------------Video---------------------------------------------------------------------------------
Gideon: Hahaha!!!! Because of Waddles I got the most greates power of all!!
Mabel: Give me my Waddles back!!
Gideon: I would, but it will be more fun to rule Gravity Falls!!
Dipper: Gideon stop this now!!!
Gideon: Never! Now Mabel, be my queen!
Mabel: No!!
Gideon: If you won't than I will destroy you with this laser rock!
( Gideon shoots, but Mabel doesn't notice)
Mabel: Is it just me or does it feel like we're in like a super hero movie.
Dipper: Mabel look out!!!
(everything goes slow motion)
(Dipper jumps infront of Mabel and gets blasted into ash)
Mabel: Dipper!!! No!!!!
Gideon: Hahaha!!! Now Mabel, its time to be my queen!
Mabel: Why would I date a JERK LIKE YOU!!!
(Mabel runs away)
-------------------------------------------Video Ends---------------------------------------------------------------------------Dipper: I die?
Future Mabel: Yes.
Dipper: But that means I'm going to die in 3 days!
Future Mabel: Because of that pig.
Mabel: But Waddles will never do such a thing.
Future Mabel: Waddles doesn't do anything, but he has a special chemical and that's what Gideon is after.
Dipper: So Gideon wants to rule Gravity Falls?
Future Mabel: No. The world.
Mabel: But I... I.... I can't throw him out!
Future Mabel: I'm sorry Mabel, but you have to. Even now there is a huge war going on and many lives are being lost. Think about the People, think about the future. Think about you brother!
Mabel: But... Waddles.... He's my best friend.
Dipper: It's a pig Mabel.
Future: Mabel, I know this is hard, but you have to get rid of that pig.
Mabel: Where will he go? What if he gets in danger?
Future Mabel: The longer you keep him the more danger there will be for you two.
Mabel: I... I- I... I don't know.
Future Mabel: You have to think of something quick, or Dipper will be toast.
(They look at eachother)
Future Mabel: Here you might need this, * passes a time maching to them* Thats all I have time for now, but the future is in your hands!
Dipper: Wait-
(Future Mabel dissapears)
Mabel: Throw Waddles away?
Dipper: I'm going to die in 5 days?
To Be Continued!
Sorry if this isn't the best, but I tried guys! Leave a comment!