From what the key principles said:
- The Main Stand will showcase our commitment to quality, professionalism and delivering the warmest welcome. Whilst it will be modern, luxurious and imposing, it will retain its identity as a ‘football stand’ and an ‘Everton stand’. It will offer internal views of the pitch and external views of Liverpool Waters, the City and the River Mersey.
http://www.evertonfc.com/functional/your-stadium/key-principles/a-new-home-for-everton
So I think that means...
West stand = Main stand inc hospitality, corporate car park behind it and views across water from within the hospitality areas inside the stand
East stand = away fans at the north end, main fan zone running alongside it
South Stand = Single tier stand
North stand = Dinky stand with HUGE screen