  In a variety of supersymmetric extensions of the Standard Model, the scalar
partners of the quarks and leptons are predicted to be very heavy and beyond
the reach of next-generation colliders. For instance, the realization of
electroweak baryogenesis in supersymmetry requires new sources of CP-violation,
which can only be naturally accommodated with electric dipole moment
constraints if the first and second generation scalar fermions are beyond the
TeV scale. Also in focus-point supersymmetry and split supersymmetry the scalar
fermions are very heavy. In this work, the phenomenology of scenarios with
electroweak baryogenesis and in the focus point region at the LHC and ILC is
studied, which becomes challenging due to the presence of heavy scalar
fermions. Implications for the analysis of baryogenesis and dark matter are
deduced. It is found that precision measurements of superpartner properties
allow an accurate determination of the dark matter relic density in both
scenarios, while important but only incomplete information about the
baryogenesis mechanism can be obtained.
