Yes, Koul, they released every single grip with this update, they will NEVER add any more in the future.
I'm pretty sure he was joking
As far as the items go.. they could just take away your access to Mog Locker and Bank and Storage while out on the field... they have to include those as part of your 'cap' because they have to be able to be loaded into memory on demand. I'd much rather have a larger inventory and not be able to check whats in my bank on the field, however..