I hope Cowon will add these improvements to the J3's successor (at least some of them):
- Better CPU (the interface is customizable, but the necessary power to create smooth interfaces is missing)
- Upgraded Flash version (Flash 8, for example, contains many features for better performance and makes amazing animations possible)
- 10+ band EQ
- jetEffect 5 (used on the Cowon Z2)
- user-replaceable battery
- non-proprietary ports (which is very probable, the Z2 and the A5 both have standard ports)
- more supported codecs (especially video)
- better screen (higher resolution, and PLEASE no pentile like on the Z2)
- (micro)SDXC slot
- better DAC (the Z2 sounds better than the J3 IMO - I hope Cowon will use the same or a better DAC here)
- Better CPU (the interface is customizable, but the necessary power to create smooth interfaces is missing)
- Upgraded Flash version (Flash 8, for example, contains many features for better performance and makes amazing animations possible)
- 10+ band EQ
- jetEffect 5 (used on the Cowon Z2)
- user-replaceable battery
- non-proprietary ports (which is very probable, the Z2 and the A5 both have standard ports)
- more supported codecs (especially video)
- better screen (higher resolution, and PLEASE no pentile like on the Z2)
- (micro)SDXC slot
- better DAC (the Z2 sounds better than the J3 IMO - I hope Cowon will use the same or a better DAC here)