Source 2.0 has been in the works for a long time. Also the source engine can look decently well depending on whos working with it. And I have to say that in my opinion Valve’s new engine will be focused more on the modding community and their Workshop. I suspect it will be perfect for community content creators. Granted, UT4 has the same principal, but I’m also making stuff for the steam workshop and I like the new addition.