Two Guesses

[The Mikado]

The two ideas you gave us seems to me, at least, that there are two real possibilities-

- A new progressive era of class politics and victorian culture

I sincerely doubt THAT is ever going to happen. 

Ah, but think of the clothes!  I'm really looking forward to my monacle and mutton chops.

And the music!  "I am the Captain of the Pinafore..."

[The Mikado]

By 2025,
- Will WMDs be used?

Depends on the WMD.  Chemical warfare was used extensively in the Iran-Iraq War and I wouldn't be surprised to see it again.  Biological warfare is less likely.  I don't see the return of nuclear warfare on the horizon.

- Will there be another war?

Another American war or another war in general?  If the former, probably yes.  If the latter, definitely yes.

- Will there be a reccesion?

Of course.

- Will there be a depression?

A year ago I'd have said "certainly not."  Today, it's more like, "no, unless a lot of things go very wrong at the same time."

- Will life-saving science be abandoned?

No.

- Will any other potentially world-changing sciences be abandoned?

Don't know what you're referring to, but ideas are abandoned all the time.

- Will there be a large disaster that is much bigger than Katrina on the United States?

God forbid.