My Vietnamese friend randomly spurted out all of this information and it's killing me. If you want to know, please continue on. But, if you don't want to be aggravated later with knowing these things, then I suggest you not look. It's... so... xD;
Anyways, to the future! *Hops into a time machine!*
It turns out that Ran dies, Haibara and Conan marry (so young! >O), Professor Agasa is the BOSS of the B.O. (Holy crap! It makes sense, but yet it doesn't!), and Conan joins the F.B.I. as a kid agent.
That is all I was able to catch as he just shouted these out and crushed my dreams... yet, now my drive to read the manga has increased! We need the subs from the Vietnamese! Noooow!