The main thing why I believe he's signing for us from the beginning on is that Conte left the club, I don't buy that he left for being the national coach of Italy, I think he may become the national coach but I don't think it was a major point in him leaving. If it were it would have been announced by now, not? I think the Juve board made it clear to him that they want to cash in on Vidal this summer, because they think that the squad is good enough for another Serie A title, even without Vidal. Which may very well be true, but in all fairness, shows very little ambition for greater things, like the Champions League.
The other thing is that Van Gaal himself said that he first wants to evaluate the squad on the tour and only after they are back he will make decisions on who we'll sign. It should be clear after the tour that we need a CM.
Other things that point in the 'right' direction are the Pogba interview, the fact that LVG clearly likes Vidal and media reports, also the logically explaination that we want to make sure that Vidal has no bigger issues regarding his knee.
Why there's no big smoke in the UK media, I don't know. I suppose they have been briefed to stay quiet if they want to receive more information.
I know this thread is hard to follow, lots of spam.