The news that they're removing a victory condition doesn't exactly tell the whole story. It could also mean they're removing the current version of a victory condition... and replacing it with a new version of it.
For example, Civ 5 removed the Domination victory: "Lead in world population by 30% and have 65% of the world under your control."
but replaced it with: Domination victory: "Control all opposing players' original capitals and be in possession of your own original capital." (Actually, at first it was "Be the last player in possession of your original capital.")
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I really can't see Time being removed; thematically, the "main" game has to end around a certain time period and tech level (sure, you can mess around, if you wish, and keep playing afterwards for many more turns).
I also easily see the Domination victory getting the boot. Perhaps Conquest will return, since there has to be a victory condition when there's only one player left, or like I said above, Domination will simply be changed to "eliminate all other players".
Maybe it'll return to the % of world population and % of land under your control, with more emphasis on population (tall) than on land (wide). Maybe they may even add an extra twist that requires you to also have a much higher percent than all other players, to avoid situation where you may achieve the percentages but you still have a strong rival that's not too behind in population %. The Domination victory should only trigger to avoid a drawn out, boring game where you've nearly wiped-out all players and they're no longer a threat that can achieve a victory.
Also, if you control a huge part of the world and have been conquering other civs, it already synergizes well with the Time victory and the scoring system. You'll eventually win anyway if you keep everybody under your boot and don't let any other victory conditions slip out and be achieved. It gives all the other players a chance to rally against you. You can't just make a big rush to conquer things recklessly and achieve victory right away, you need to conquer and hold on to things to the very end -- or until you achieve one of the other victory conditions with your increased power against the decreased power of your rivals.