And even in regular games, the situation can be changed rather quickly, as you may recall from our own game Grazic. You were winning and my Empire was going down, and only a lack of supplies in your fleets and my infamous luck managed to save the day for my League. (And even then, I had half my planets rioting in the end)
As for updates, why your Queries shall be answered next turn Grazic when we will see whether the Pandora Box will unleash a certain torpedo or a puff of smoke. And later on, you shall have the answers you are seeking for.
(Remember, I have other tricks besides Light Carriers and the ability to detect minefields at long range. *Smirks*)