On direction changes, I've gotten this request a few times. It should be pretty easy, but I haven't gotten around to it: https://github.com/rickbutton/workspacer/issues/43
On the fly layouts would be neat. Since layouts are just an instance of ILayoutEngine, you could probably just write a bunch of custom code to allow you to make splits however you want. I would be super interested in seeing what this looks like!
wlines is awesome! There is a feature in workspacer similar to dmenu called "menus", but there are a few bugs, mostly around it sometimes not showing up in focus, which is a pain. I have some config on my work machine that lets me press alt-shift-p and navigate to a bunch of work projects I maintain, only typing the first few characters of the project I'm looking for.