It seems that Virgin certainly has undergone change; but it is all quite simple, predictable and gives the airline a better chance of survival.
The Atlantic is a joint venture and since it is risk sharing it is expected that DL will have a say. They will want VS to serve their hubs and their customers; this is being achieved.
So we have restored a second daily to LAX (good) seasonal SFO (good), seasonal extra MIA and JFK (good really weren't we saying VS ought to be able to do a second MIA) Atlanta (inevitable) and Detroit (inevitable).
Slots for these have to be found. Look first to non-US seasonal routes -that found YVR and Cape Town. Then to routes where their in severe competition and yield isn't great but which have useful slot times for US routes. Mumbai and Narita, although the inbound time from Japan isn't great. Never mind. DEL and DXB ( and HKG) slots are not great for the US so leave them be at the moment. I'd be watching PVG as that is possibly useful as a US slot next.
QED. It makes sense - it's Virgin Sir Richard but not as we knew it. it is a credible alternative for UK passengers who go to the States and US passengers. It might work the old VS wasn't.