We can only presume so as this stage; as whilst G-VRAY is in XMN at the minute, VS do send A/C there for scheduled heavy maintenance (D checks) and VS are supposed to be re-fitting the new J cabin at the same time.
That didn’t go quite to plan though with G-VKSS as whilst she did go to XMN for the scheduled maintenance, apparently VS didn’t manage to get the new cabin fixtures deleivered in time so she came back with the same old J cabin she went with.
This is only speculation, but all being well and if VS continue to send 1 aircraft per month, 8 should be done by the end of 2017, leaving just 2 so by March 2018 all 10 A333’s *should* have the new cabin.
My VS128 A333 coming back from JFK on Wednesday changed to the 1-2-1 config yesterday
though again has kept my K seat).