Merlin could brand it as, "World's first two in one rollercoaster experience." Or something stupid like that.
Thorpe beat every-one to it with Swam: Brave It Backwards
In think that 1 craft VR and 2 non VR is a possibility for the future (given that you can dispatch around 2 non for every 1 VR) and have an Oblivion queue style split. This keeps the VR element going while satisfying the increasing number of riders who are opting out of the VR.
Are there any solid stats on how many riders opt out of VR now and does it create a trend?