No info yet on how many maps there will be on the full game. But yeah, night time maps would definitely be awesome.
I have some info on the predator's target isolation scan. The scan is active for 10 seconds, and the cooldown time is
1 minute and 15 seconds. Players that have mudded themselves up are not highlighted on the scan.
I'm a bit worried in how the predator will do against a high level fireteam in the long run. Their later perks seem to be really good. Hope it will be balanced enough.