For the animated explainer video
I imagine using an image of a globe and images of the physical assets that BitAssets represent. They could be shown to be 'switched' for the BitAsset equivalent (BitAsset icon used + pleasant sound effect), liberating them from their existing limited transmission channels. Physical gold is now tradable as a digital currency. USD in a bank is now tradable as a unrestricted cryptocurrency. They could be shown to flow around the world in an unrestricted network looking a bit like a cloud but with legs (lol). It's about showing that BitAssets are a parallel financial system running free and global, alongside and in comparison to existing more 'compact' networks where there are lots of rules and lack of service to half the world (visualised also as more limited + rigid networks on the same globe). The national lines on the globe could then then erased, or shattered, symbolising the world gaining financial freedom. It could zoom in to a location and say 'now you can send money from x location to x location as easily as if you were neighbours.' (or something) Then it could out again and the globe image could change to become a brain, where the BitAssets are a new layer of a brain being grown, where the 'matrix' of the financial system is thickened, as a service for all humanity is born. 'Money just got smarter'.
The BitAssets could be portrayed as a shiny new asset class, they could be put on flags and show images of crowds marching under them (a civilian revolutionary "march" rather than military), to symbolise the 'it's a movement' aspect of crypto.
Just some ideas. I'll put this in the video production thread on nullstreet.