Respectfully the IP is well over 20 years old. Time to..
Assuming Sony does acquire SE.. I highly doubt Sony/SE would be interested in a niche IP, never mind a JRPG from a bygone era. And assuming they did look at previous IP's something like Chrono series would take priority. I'd want SE to have a look at Vagrant Story myself regardless xP
Do respect the energy though, keep the flame going dude lol. Happy to eat crow if by some miracle it does happen.