Hi Maximiliano, I tried to build the new kf5 kdepim and related packages by my own within my pbuilder environment.
After I have rebuilt the akonadi packages I want to build the new kf5-kdepimlibs source package. But unfortunately the dependency cannot be resolved. kf5-kdepimlibs needs akonadi-dev. akonadi-dev needs amongst other things libkf5akonadiagentbase5 and libkf5akonadixml5. libkf5akonadiagentbase5 and libkf5akonadixml5 need kdepimlibs-data which is not available/built at this time. A possible solution could be to remove the dependency of libkf5akonadiagentbase5 and libkf5akonadixml5 to kdepimlibs-data. Another issue which I have realized, you have added an epoch to the version number of the new akonadi source package in the experimental repository which was not needed. Kind regards Detlev