Frogboy, am I missing something in that tech screenshot? It looks like all the techs are the same as before except for two of them. I thought the whole tree was rewritten per race, even if most techs were essentially the same with new names. Did I misinterpret something? Not that it would surprise me if so, but I'd like to know for sure.
I think the Terran tree was the supposed to be the most similar to the original tech tree, and guessing from the interface color (and the fact that Stellar Cartography isn't already researched)... I'm thinking that's the Terran Tech tree. Still, there are quite a number of changes, actually.
1. 3 new techs. The third one isn't shown, but remember that HyperWarp had no prerequisite in DA. Artificial Gravity and Fleet Warp Bubbles are shown. I'm guessing the third one is Hyper Fusion Reactors, based on Kyro's comment above and the text listed in the one thread in the Dev Journals.
2. Stellar Cartography is no longer required for any Sensor techs. Not that it wasn't for any race other than Terrans before...
3. Xeno Entertainment is part of the Planetary Improvements arm rather than part of the Diplomacy arm.
4. Research Center (and the rest of the research improvement techs) switched places with Advanced Computing. Graphically, I think this looks cleaner. This also happened with Xeno Entertainment in DA, where to the right of Xeno Entertainment was the Influence line, but below that was the rest of the Entertainment line... I dunno, it bugged me at least.
Could be more, but that's just what jumped out at me... hmm, maybe I should load up DA and compare some more...