The conflict between generations is diachronic, through time.
Most conflicts are synchronic, and so are the theory and practice of conflicts.
Each generation wants as a minimum to satisfy its own basic needs. Reconciliation processes would be significant in that context. However, in the world as a whole pollution and depletion are increasing, violence is increasing, the wisdom with which conflicts are handled is hardly increasing, and world cultures counteracting these trends are not internalized. The obvious prognosis is increased violence and mass migration. But that will have to be done far beyond the narrow time horizon for today's studies of that kind.