Yo Spax, I incorporated your naming scheme into the raceconfig file a while ago so all your existing videos should still work. Need some for recently added races though if you're still feeling the B5 love

As for incorporating sound and video in to the base mod... not going to happen. To be honest, I don't even have the sound (let alone movies) on when I play the game. I think that the most bang for buck modding is in the hulls, techs, components, starting systems and racial stats. There are other things like anomolies, static event screens, starbases and alignment choice events that I intend to work on eventually - I just don't think that a video I am likely to skip past anyway is worth increasing the download size by over 20 times. Model importers (Coplann, Vorlone, Robalis and Voltron) have done much of the legwork for me and Spaxspore's media addon is fantastic for people who enjoy the movies... but don't forget that this is a one man mod team.
Different mods will focus on different things and likely head in different directions. If there is something you believe is sorely missing then feel free to make an addon - I will help you any way I can, it's all about choice