As I understand it the developers are very focused on making cars, weapons etc. very realistic in operation and performance.
They might let the real world inspire them when designing the environment.
If they place the Identity map somewhere around 50 - 55 degrees latitude north or south the days will be long in the summer and the nights will be long in the winter.. Everybody wins
That is of course only if they choose to implement seasons. With a 5 hour day you will experience everything within 2.5 real months.