Reasonable on 19 May 2010
Nobody should care unless being mutli introduces an issue such as a delay in final release or the like.
Given FFXIII you'd expect it to go multi unless it's too far down the line with PS3 specific code or design or Sony manage to put enough pressure on (perhaps based on having the lions share of FFXIII sales) to keep it exclusive.
Ideally, if I was SE I'd keep it exclusive in Japan/Asia to appease the fans there and make it Multi in US/Europe just as they did with FFXIII.
Try to be reasonable... its easier than you think...
