Fast and Furious Six will happen
That's not just me saying that, it's Justin Lin the director, and anyway Vin Diesel has been saying it for some time, pretty much as soon as the script arrived for Fast & Furious 5 (Fast Five) he was saying that it set things up nicely for another film.
If you stayed to see the end credits scene then you'll know exactly what he means, although I do think he was also referring to the newly created relationship between the Dwayne Johnson character and his own, something that would play out well in future films.
There's also something else to consider. Fast & Furious 5 aka Fast Five, which I really need to get a move on and write the review for now that I have a working computer again, was quite a bit different from the previous films in the franchise, there was a lot more story and character than cars, and while that might be a disappointment to those hoping for more car action, it certainly delivered in other areas, of that there's no doubt. I think Fast Five was up there with the best of the series so far.
Now it would appear that the box office takings agree and have sealed the fate for the franchise, a sixth film, one that will be very difficult to fit a name into...How does six or sixth work with Fast and Furious?!
"After this big weekend, we're going forward... It's pretty much 100%. It's going to happen."
Quick reality analysis, something I do like doing here rather than going off and taking meaning from words that isn't there, "pretty much" doesn't mean "100%". However I don't think that any film hits a hundred percent this early, not really.
We already know that Chris Morgan has set-up a sixth film, and that with his two-year deal with Universal he's on to the Fast and Furious Six film already, and I don't believe there's any stopping the franchise right now. I actually don't think that the sixth will be the end either. Even producer Neal Moritz has been saying they're going for another.
With the direction of Fast Five moving away from the cars somewhat, the relationship between Dwayne Johnson's character and Vin Diesel's taking that interesting turn near the end, and the final closing credits scene introducing a new character and a big surprise for fans of the franchise, it is at its strongest ever, and to me that means more than one film.