The following speculations turned out rather useless.
Although it looks like Giro d’Italia 2025 will most likely visit Sestriere.
Although Tour de France visited Italy (well, not just visited, but the Grand Depart took place there) in 2024, organizers already planning to a come back. In 2025. According to a newspaper from Torino The object if their desire is the ascent Colle delle Finestre, which Giro d’Italia organiters wich to visit too.
Hence “the battle for Colle delle Finestre” expression.
Also, there is a high possibility, that Sestriere (France) will be a busy place in terms of hosting a cycling grand tour stage.
The Alps will be included to the program of Tour de France 2025 in the third week. Little to know about it currently,but it seems that the race visit Valence in the Drôme region.
Speculatiojs and rumours are swirling as usualy you might take a look at the overview of this topic.