Martin Schlander writes to zypp-devel, giving the first feedback on the topic for alpha6. While he reports lot of issues, his first paragraph is really encouraging:
I’ve played a little with alpha 6 - dvd install of x86_64. Generally the new libzypp fully lives up to the high expectations that have been built up - the start up speed and the low ram usage is really a blessing. Almost too good to be true.