For Deutsche Bank, a series of important milestones loom large on the horizon.

This week marks 25 years since the German bank announced it would acquire British merchant banking group Morgan Grenfell. Next year it will be 20 years since Edson Mitchell, a key figure in Deutsche Bank's progress in investment banking, joined as head of global markets - and 15 since he died in an air crash. On his death, Anshu Jain took over most of the global markets business - and is now co-chief executive of the group. But as the bank looks to its past, questions about its future as a global universal bank continue to ring out.