Is it just me or we have two similiar topics here?
Anyway...
Come to think - i don't want to good characters to die.
I'm got tied to them while i'm reading manga and if one of them will die - it would be horrible.
Sure thing, in most mangas that i read some good person dies. One or two, maybe even more.
Sometimes it's fits in storyline as brige between two parts or something, but it's sad anyway.
I think that Kudo will get his body back. For sure. And it will reveal fact that Conan is Kudo.
And it's possible that BO will be destroyed. In Japan...
And Gin will die, probably killed by Akai (cuz i think that he's still alive as "Holmes" faking his death). Or BOSS himself in order to slow Kudo down.
Also i think that there won't be Big Death, more like Big Incident. Which bring them all to hospital.

I mean, that BOSS will blow himself or something, and all will get hurt, and Shinichi will reveal Ran all his feeling towards her or something. Sure after that she lives =)
Then, i'd rather see as Shinichi ask Ran to be his wife (this will force her parents finally restart their relationship).
As for Ai... Well Sherry is no more. And she still can start a new life afterall... I mean suddenly some Prince Charming well reappear, or she'll remain as is. And wait till that boy grow older =)
Some members of BO still remain outside. And if Japan will be cleared from them maybe other places won't.
What i'm trying to say, is that i want a Happy End. I mean everybody alive and well - everyone is happy.
After THAT will be over, everything is possible.
Sure it's childish like... But it's not that much is it?