FE- Dynasties are cut
Other systems, such as population storage (aka housing) that used to require that the player find food to build houses to grow cities, have been simplified (less city micromanagement), and systems such as dynasties have been cut entirely. Technology research is a more elaborate system where the player can plan out his future goals and plans. Leveling up your champions and designing units both offer more options and, more importantly, more flavorful options.
I knew they were looking at dynasties, didn't realize it was going to be on the chopping block. Probably the right call though, it needed a ton of work and wasn't that important at the end of the day. Best to focus on core stuff.