Before you appoint yourself a sociological analyst of the forums, it would be helpful to become familiar both with the subject you're opining about and the actual things your subjects say.
For example, the ONLY TIME someone mentions concerns about completeness (as opposed to the exact date of release) is this:
fatmancory: Yep, this game will be finished eventually.
Which if you read closely, he was saying that unlike most LoK games, this one will be finished. So there's rather less than zero "pessimism about (this) game being released" in this forum.