Will there be a new version of Directory Opus 12 in 2015, or is Directory Opus 11 still going on for one year.
Opus 11 was out just this year. New major versions of Opus are issued ca. every 3 years, so that would be in 2017 at the earliest.
Release dates and upgrade pricing are always subject to change until things become locked down for a new major version, so we do not announce plans until we're close to being ready to release one (or a start a public beta test, like we did with Opus 11).
We are not close to releasing a new major version right now. Beyond that, anything even I say would be speculation. 