A news story from MMOSite reports, “Blizzard itted that they started to lose World of Warcraft s from the beginning of 2011. Specifically, they lost 600,000 WOW s in Q1 2011, 300,000 in Q2 and 800,000 in Q3.” They go on to say “If SWTOR succeeds in attracting over 1 million WOW s, World of Warcraft can no longer boast having more than 10 million active s.” 4w6s1s
That’s a big loss but still, Blizzard has a large fan base with WoW. But WoW is not giving up that easily. They have a few ideas to players leaving WoW may choose to try it instead of going with SWTOR.
So maybe these games will lose some players to SWTOR but it’s not likely the must also take into consideration whether or not they will have what it takes to keep the players they attract long-term.