It is already a rule to not spoil in title.
So your suggestion for (SPOILER) Content from Sony presentation leaked, or similar is already something people should do instead of putting the title like let's say "(SPOILER) Cloud dies on FFVIIRemake".
duduspace11 "Well, since we are estimating costs, Pokemon Red/Blue did cost Nintendo about $50m to make back in 1996"
Mr Puggsly: "Hehe, I said good profit. You said big profit. Frankly, not losing money is what I meant by good. Don't get hung up on semantics"
Azzanation: "PS5 wouldn't sold out at launch without scalpers."