Why does S-E Always Announce the NEXT FF before the current ones out?

[PS3beats360]

So S-E have development teams working on doing multiple FF projects and all three FF games (FFXIII in Europe/NA also on 360 in early 2010, FF Versus XIII worldwide around middle of 2010 and FFXIV worldwide just before Xmas 2010) Three FF games will be released on PS3 in 2010 and expect huge boost with PS3 sales with the launch and first month of each game launching on PS3.