A) Their characters will be able to cuztimise and pass to 3d?
B) Will stay in 2d in a way to show old players?
After wipe and 3D implementing, the whole player-base will be erased, so no one will be able to play by 2D character anymore.
C) There will be a wipe?
The wipe is necessary to apply that kind of changes, so yes, there will be a wipe before we'll be able to play by 3D characters.
Also i would like to know, cause neither the developers video and the van buren show "gore" deaths, i wanna know if there will be Blood mess death style in 3d
Gore death animations are planned, because our aim is to recreate Fallout in 3D as close as possible to the 2D originals. We even have some test animations.
Here you can take a look at them.
P.S. Please next time use this topic if you have any questions about 3D development, instead of creating a separate one.