will/would

No. Would. It's conditional.

I'm not talking about grammar but from a logical point of view I would say the word is would.

As it never happened before (millions of deaths), one can only assume it will happen, although we are not sure.
If there's a probability, but we are not completely sure, we should use the word would.

Oy, a very skilled native speaker replied already!

Hi, McT!

And briefer than that Frenchman.

Hi, Francis, long time no see!

Grammar doesn't determine word choice, Francis. Grammar is dictated by logical points of view, what it is that a speaker wants/needs to say.

You're right that would would be the most likely choice but that certainly doesn't exclude will. If a speaker wants to give the feeling that this situation is imminent, that it could happen, say and idiot like Bush ranting about Saddam, then will would be fine.

It all depends on what the speaker views and the impression the speaker wants to leave.

And it isn't that it is conditional. will can easily be used in a conditional fashion.

If I go to London, I'll be sure to give McTag a call. =

Upon the condition that I go to London, ...

Will