Ok, that is a little too big now. Just been raised to 7/10.
I'm worried that ARKTIKA.1 (4A Games' VR project) will delay a possible Metro title. First and foremost though the end of 2035 is what needs to be cleared. Depending on what has happened a year later there might not be a sequel at all.
And look on the bright side - this partial obscurity ensures the community remains mature.