Multilingual website: Different directories

Hey guys,

I have a website within the travel niche where the main domain (mydomain.com/lang) is based on Javascript and our blog/content part is based on WordPress (mydomain.com/blog/lang).

Can you see any risks with editing the order of lang-directories? I mean, on the main site it always looks like this;

mydomain.com/lang/destination

and on the wordpress-part (on the same domain) the order is like this;

mydomain.com/blog/lang/destination-information

So we have added the "blog"-directory to be able to implement the WP install to the website. If we should reverse the order to;

mydomain.com/lang/blog/destination-information

I guess we need three separate WP-installs for each language, which really isn't an option.

Hoping for some thoughts!