Just coming here to say that I think it's great that there are no pathways through the middle of the Alps anymore, and that you actually have to go around them to conquer. For the AI, this makes for more sensible and historically realistic pathways of expansion and conquest. Since I'm playing as the Romani faction now, at over 400 turns I'm finally moving into northern Europe, but I had to do a lot of conquering before then to get to that point. The Alpine barrier also means that my northern Italian possessions were relatively safe from harm, so that I could focus my energies elsewhere.
I guess the trade off here is that Bagiennorum in Liguria is a horribly unruly settlement, but I've managed to quell the riots and develop it as a province. I had to get rid of the original allied government because that was simply not enough. I needed more public order bonuses with amphitheaters and daily games, and a permanent string of successive governors with good traits and lots of green laurel wreath influence to gradually convert the culture to mine.