I must admit that I do not know the area at the moment and I do not know which sections are finished and enabled for circulation and which are not, but if updated satellite images show that they are ready for use, perfect.
Here are some sources of information that I was able to gather for reference:

* https://cuestiondedesarrollo.com.ar/se-construye-una-nueva-autovia-en-provincia-de-santa-fe/
* https://www.santafe.gov.ar/index.php/web/content/view/full/185544?e=0&p=1
* https://www.skyscrapercity.com/threads/autov%C3%ADa-rp21-alvear-fighiera-ex-rn9-seccion-bs-as-rosario-provincia-de-santa-fe.2400442/?post_id=190230626#post-190230626

The issue that concerns me is the correct navigation with the crossings connected in both directions. As they are currently, the calculation of navigation on that avenue is greatly deteriorated.