Regarding the X1 launching in more countries thing, it's really hard to say because there are a lot of factors.
Is the Xbox a strong brand in those regions?
Are those countries' gaming populations big enough to make an impact?
Is the fierce demand for PS4s seen before Christmas going to remain strong?
Personally, I answer NO to all of those.
The regions the Xbox brand is strongest are English-speaking countries, and I think MS has played most of its hand already. The remaining countries will be a case of mopping up the crumbs.
Sony still has Japan up it's sleeve, there was no hurry to launch as MS was never going to take it and the Wii U wasn't looking to make any big moves.
Japan is less of a force than it used to be but it's still the third largest gaming market in the world.
The gap will widen, but the X1 has already established itself in NA, which is really its key market. So it'll be fine. No one should be holding their breath for a sudden jump in sales from the wider launch, though.