I can only guess due to not knowing exactly how many people will stick with it after the initial launch. Let’s assume that there will be 500,000 players in North America alone that keep playing after the initial inspection. Let’s also assume that 75% of those players will be on a PvP server, 15% will be on a PvE server, and 10% will be on a RP server.

PvP Servers: 375,000 Players

PvE Servers: 75,000 Players

RP Servers: 50,000 Players

Let’s also assume that peak online concurrent players is 60% with it being 25% at non-peak hours. Peak hours will refer to 5 PM to 11 PM for each time zone.

Servers are broken into time zones, PST, CST, and EST. Let’s assume that all players are divided into each time zone equally for ease of calculation.

PST PvP Servers: 125,000 Players

PST PvE Servers: 25,000 Players

PST RP Servers: 17,000~ Players

CST PvP Servers: 125,000 Players

CST PvE Servers: 25,000 Players

CST RP Servers: 17,000~ Players

CST PvP Servers: 125,000 Players

CST PvE Servers: 25,000 Players

CST RP Servers: 17,000~ Players

Using the 60% peak online concurrent players I made up (different values can be plugged in) let us take 9 PM EST as a sample time. That means it is 8 PM CST, 6 PM PST. All servers in North America are now in peak hours.

Concurrent Players

PST PvP Servers: 75,000 Players

PST PvE Servers: 15,000 Players

PST RP Servers: 10,000~ Players

CST PvP Servers: 75,000 Players

CST PvE Servers: 15,000 Players

CST RP Servers: 10,000~ Players

CST PvP Servers: 75,000 Players

CST PvE Servers: 15,000 Players

CST RP Servers: 10,000~ Players

Based on my numbers I pulled out of no where with no understanding of how many players will stay and how many players are concurrently playing at peak hours, I believe based on this example we would need:

75 PvP Servers (25 PST, 25 CST, 25 EST)

15 PvE Servers (5 PST, 5 CST, 5 EST)

12 RP Servers (4 PST, 4 CST, 4 EST)

**Total:** 102 Servers is what I would like to see if the numbers match. Blizzard will have metrics they can use to make this number more accurate. I just hope they don’t underestimate the number of servers. I do not want to see servers with over 3,000 players online at the same time.