Molly said:

o.o? I'm pretty sure everything went to DVD in 4:3 *somewhere* in the R1 region.

In R2 land, Warner Music Video released the Big Green Dubs of DB movies 1-9 (including the specials) in 4:3, and as far as I know are uncut aside from the Toei logos on some of them. However, seeing footage from one of them on YT, the video looks to be sourced off a PAL betacam master with rainbowing, but is in the correct PAL 25fps rate (unlike most R2-4 releases of other anime, which are shoddy NTSC-PAL conversions with ghosting). So a 23.97fps conversion would be possible if one found BG sources good enough.