anyways,

small frames...
one position handlebars...
platform pedals...

seems like except the fixed cog, track bikes that are meant for tricks seem like they're conforming to BMX specs... if it does progress, then the bikes themselves will probably end up being smaller, and more BMX like.

Sort of like how FBM makes a track frame now.

http://www.fbmbmx.com/admin/news/photos/416635bb1.jpg

^^ case in point