I really hope for a young Padawan Anakin show. This would add more depth to his character development as well as Palpatines influence on him from the beginning. His relationship to Obi-Wan and their problems could also work out really well, as they’re having more of master-padawan realtionship than that of two friends.
All these things were also shown in the “Anakin & Obi-Wan” comic, where it worked out very good imo. It’s still questionable if this would give the showrunners enough material, but they could tell some really good stories in this time.