LGW 747 - config queries

Hi,
I fly once or twice a year from LGW to MCO/LAS with Virgin and am always curious to know what config I will be travelling on. I've noticed a couple of patterns that I wondered if anyone else could confirm is correct?
1. Once the flight is booked, on the "Manage My Booking" page, the seat map here seems to always show Config 1 (what I refer to as the "Nova" config). Since there are more planes with this config it makes sense to me - is this correct?
2. OLCI seat map shows config 1 or config 2. In my experience this has always been accurate so I'm guessing that the aircraft to be used is known 24hrs before departure. Again, does that sound right?
One more question about the two different configs used from LGW...
3. Following the refits due to start late this year, will all LGW 747s have the same layout?
Many thanks,
Monty.
I fly once or twice a year from LGW to MCO/LAS with Virgin and am always curious to know what config I will be travelling on. I've noticed a couple of patterns that I wondered if anyone else could confirm is correct?
1. Once the flight is booked, on the "Manage My Booking" page, the seat map here seems to always show Config 1 (what I refer to as the "Nova" config). Since there are more planes with this config it makes sense to me - is this correct?
2. OLCI seat map shows config 1 or config 2. In my experience this has always been accurate so I'm guessing that the aircraft to be used is known 24hrs before departure. Again, does that sound right?
One more question about the two different configs used from LGW...
3. Following the refits due to start late this year, will all LGW 747s have the same layout?
Many thanks,
Monty.