I know that but I was thinking a new system, I just didn't want the post to be to long at first, I was thinking like once you fill out all the techs in one area it takes you to a tech tree like Civ's or so. Though I still like the idea of breakthroughs so maybe it would just be a 6th tech called future techs which only gets unlocked when you finish enough pre-requisit techs needed to make the new tech be actual breakthroughs not just a guarantee, and of course this new future tech would take a much longer time then the first 5.
I do agree with you though
I'd like to see elemental's 2 big expansion packs to be the first one allowing you to unlock a 6 tech tree called Renaissance, and the 2 expansion to allow you to unlock an industrial tech tree.