As I'm typing this AC Evo has 2,932 players at peak time in Europe with a 24hr high of 3,905.
For comparison Forza Horizon 5 has 15,900 players with a high of 18,468.
AC Evo will always be limited by the size of it's dev team and allocated publisher budget. It's why the final game will launch with around 100 cars and 15 tracks. The much vaunted open world will be released in stages and I for one have no confidence the location in question will be compelling longer term. Neither do I expect AC Evo to support PSVR2 as the new engine is extremely heavy. We'll be fortunate to see a locked 60fps at 1080p-1440p. That's another benefit PD has with their focus on PlayStation hardware and experienced tech teams.
Assetto Corsa gained the following it did due to the modding scene. Something it never had on console and one of the reasons, along with poor controller support, it never made much impact. Without an unrestricted modding scene on PC AC Evo will find it's niche but not replace the original.
I'll be very interested to play AC Evo when it comes to console but I'm not expecting that for another year or two. By which time we'll be bang in the middle of the GT8 hype cycle. Of more concern to PD should be Forza Horizon 5 coming to PS5 in 2025.