We don't know exactly what is on their list of noted but wontfix/wontdo and we'llsee/todo list. Besides, I don't think browsing improvement suggestions forum is one of Scawen's daily chores, so he might very well not notice a suggestion (I think so anyway, because most of the recent features have been posted in the improvement suggestion forum long time ago, but have been talked about in the recent patch release threads).
Spamming the patch release threads is off bounds but posting in the improvement suggestions forum is fine by me, if it's not listed in the already suggested log. And free roam already is there, but no city, which I take it includes traffic. So I'm not sure to or not to at lmao2times.