Somewhere in a interview he said there about 900+ people working on FFXIV 2.0 and a skeleton crew working on 1.0 releasing all the patch and such. I remember reading that yoshi-p also took some people from FFXI to help with the battle system to see what they could do and such.
I have a feeling that a big % of the people working on ffxiv only work one something for let's say 2week then went back to working on other stuff SE need. I don't think the 900 people where working every day making ffxiv 2.0 if that was then i think we would be by beta3 dont you think?
I mean he did say there 900 people working but not sure if they was on for full time or just few parts and then left i guess we never know or maybe yoshi-p would give us that info.
