@Yuugi's:
Here's hoping Season Four First Voyage can switch from one episode full screen episode to multiple wide screen episodes easily.
The Japanese DVD's for Season 4 (their Season 7) was in 4:3 when released. Even now, the Japanese eps of DragonBall Kai are being released on Blu-ray and DVD in 4:3. But, the new Logue Collections of those episodes in Japan are being re-released, and hopefully they will be in 16:9. But that's just hopin'. So then they can give those to FUNimation.