Few Questions About LTE?

[ekusiad]

Hello,

I just have a few questions about LTE (please elaborate, too, if you can):

1) Will phones that top out at HSPA+ still connect to and use HSPA+ through the long-term future?

2) Will phones that top out at LTE still connect to and use LTE when LTE-Advanced becomes available?

3) Will phones that top out at LTE be able to connect to and use LTE-Advanced when it becomes available?

4) How many years away is LTE-Advanced from becoming available?

5) Would HSPA+ be usable while on vacation in international countries like China, South Korea, or Japan when LTE obviously dominates and saturates over there?

Thank you