Plugin Routes and Promote

in my project i have naturally my route
/ (homepage)
/pages/* (this handle static pages)

I need to introduce new routes with a plugin
this must change behaviour through routes
/pages/* must use a controller plugin.

So my problem is about how to promote my plugin routes in routes order …

I know there was a promote method … but i’m in version 4 so this i think is deprecated.

Can someone help me ?