What was your exact problem with Wordpress? We seem to share the same architectural needs (although we only work in 2 lanuguages, but one of them is LTR and the other is RTL) and we have Wordpress working perfectly for us.
We had to tweak it a little bit, using plugins and some extra dev adaptation (mostly for performance, not language related), but it does the work.
We've tried a few other like silverstripe and Ionize, but both were way to complicated and required a cumbersome process much like the one you mentioned in your post.
We try to be very playful and original with our design and Wordpress don't give the sort of freedom we are after.
When testing out wordpress for the translation aspects, I guess it could work. However we are not found of the solution. It duplicates and dumps a document to the database which slows down the pages. Django handles translations much better.
We've tried a few other like silverstripe and Ionize, but both were way to complicated and required a cumbersome process much like the one you mentioned in your post.