Why Sony closed MxO and will it be revived as free to play some day?

[There_is_a_Spoon]

Hi. There are plenty of shitty MMORPGs and video games of other genres in this world that are live and available for play. On the other hand, Matrix Online, which is of quite a good quality (from graphics and atmosphere standpoing) - discontinued.
Why Sony closed the project instead of making it free to play? Is there any chance of revival in near future? There are web sites for getting votes of people for some cause, for example for revival of MxO. If we gather, let's say, 100 000 votes for getting MxO back online, can it convince Sony?