I can’t help but think that’s a mistake by Visoiu. MW Arden is a good team, but they have strong connections to Red Bull through Christian Horner (the owner of Arden). With Kvyat and Sainz Jnr. both getting support through the YDP, they’re probably going to get the first bite at the apple, and Visoiu will have to be content with whatever is left over.
That’s what I like about the GP3 Series silly season – it’s virtually impossible to predict who will go where, but when driver announcements are made, I like to jump on Wikipedia or DriverDB and check them out, to see whether they might be worth following.