Should 4th Metro game be like First 2 or third game?

So Metro 4 is in development. should it be like original 2 or 3rd game?

I really hope its like original 2. First 2 Metro games are masterpieces. Exodus is worst in series and Metro design is not really for open world. I think 4th metro game should be like linear but with little more open tunnels. should be set in metro tunnels.

there was a time I do wanted sandbox Metro but since STALKER 2 will be non linear fix. next Metro should be like original 2.

so friends, do you want next Metro to be like 2033 and Last light? or Exodus?

lets discuss.