Overdrive believes that Spirit will benefit from the new map pool.
Overdrive - "I have mixed feelings about the update. On one hand, I'm glad to see Dust 2 back in the map pool. It's a dynamic map with unique features.
On the other hand, losing Overpass feels disappointing, especially considering that we have the dull Vertigo and ancient Inferno in the pool. The change in maps will put pressure on the pro scene.
Teams like Faze and Vitality won't be affected much, but NAVI and Mouz will weaken, while Spirit and G2 will strengthen."
Today, Valve removed Overpass from the competitive map pool and Premier mode. Instead, they reintroduced Dust 2."