The subduction in the Mediterranean region has halted because the African tectonic plate has reached the harder crustal part of the Eurasian tectonic plate. Because both of the plates have a same crustal density, there's no subduction anymore, but instead, there's a collision that will start to slowly lift the area around the collision line, and in time that will create a very high and very long mountain range, similar to the Himalayas in Asia.