We will have much more than just a few new techs after the update. No numbers given, but Wiz emphasized that there will be "lots" after he was asked a similar question during the first utopia stream. His response was very unambiguous about this. And in another stream, he exhibited new techs for better war demands, and others to increase the core world limit earlier in the game. Doubtless, there will be even more than just these, and plenty designed to interact with new features and mechanics.