I hope, that rust will be the Counter Strike of the survival genre. A game, which would finally not have differing opinions (like minecraft), but it would be the final, and ultimate survival game for like 10 years. Also, we need an ultimate modding kit.
I dont know if it will shape anything, survival genre is pretty much alive and working. It is a very interesting genre where games have a lot of unique aspects. Minecraft, Dayz, Rust, Forest, S.T.A.L.K.E.R (remember where rust came from!) they are pretty much uncomparable, althought have taken ideas from each other.
Thinking about Garry's mod and this: https://github.com/Facepunch/rust-sdk
We might will have something to mod rust with client-side too to get skins, new weapons and stuff through the Workshop or there is Pluton for server-side modding.