For those wondering when the update is, recent messages and videos posted in the communications server shows that there is still quite a few to do. Signalling is still bugged, some areas of the game have yet to be finalised and some train door scripts seem to look like prototypes (M set, V set) probably because they are fairly new.
Therefore the doors may not be animated accurately in contrast to their real-life counterparts. I do not think that this update will release open beta before April but it will certainly be worth it in the long run.
