Probably not soon. There's still ludicrous amounts of money flowing in the US-based VC system and I'd imagine YC would rather focus on that until it's dead as a doormouse. I'm someone that really supports the Asian/European entrepreneur circle, but its still hard to overstate how much capital is flowing through the US right now.
(disclaimer: I have no affiliation with YC, just startup culture)
That's an orthogonal concern IMO. Running a batch in Europe is about tapping into another source of opportunities. There are plenty of founders that won't or aren't able to attend YC in SF
(disclaimer: I have no affiliation with YC, just startup culture)