Hey Esben,
v2 will be a result of the findings from v1. That was my understanding from the beginning. It really should have been that the first Dream Chip build is v0.9. The next version with any improvements, if any, should really be v1.0.
No, hard date as to when "v2" will be out, and I don't see why a 50W version should not be released. I have two 50W dream chips.
Ron