To answer your first question, I plan on picking this up on launch day here in the UK, an unknown day in April. Of course, this is assuming it receives favourable reviews, which I'm sure it will (40/40 from Famitsu, for whatever that's worth nowadays).
Unfortunately, the nights convenient for me are mornings or afternoons for the vast majority of you. In which case, for everyone else's benefit, I would have to stay up into the early hours of the morning, something I can only afford to do on weekends. Long story short: Friday p.m. to Saturday a.m. and Saturday p.m. to Sunday a.m. (GMT, obviously) would be good for me.