Flying to HK - 346 Config 1 or Config 2?

Hi
I am flying to HK on 27 June on a 346. Currently the website is showing a config 1 layout. When would virgin update my booking if the aircraft is a config 2 aircraft such as G-VWIN, G-VFIT or G-VEIL?
I am flying to HK on 27 June on a 346. Currently the website is showing a config 1 layout. When would virgin update my booking if the aircraft is a config 2 aircraft such as G-VWIN, G-VFIT or G-VEIL?