Towns that look ancient so far don't seem to be possible, so that will be a loss compared to EB1. I seem to remember something that was going to have to be dropped (scripting or traiting) but Kingdoms reintroduced the trigger or something, though I'm not sure.

There are some things that are somewhat decided on for new features, but it is a general rule that these things are kept secret and are used as surprises for previews and such.