Project Soul doesnt really have a choice in the matter. There is a reason why several Namco franchises are testing F2P... and it is because Namco is still forcing them to test F2P.
I know I'm a bit late to the party but I'd like to show my support too. I hope that if they really do go ahead and make SCVI, they'll try and make up for all the missing content in V. At the very least, I'd be happy just getting to learn more about the characters that were actually in the game more than anything.