I dunno about that. Well I dont know wha you know about BMX really. I used to race BMX and I still get out and ride flat when my body permits, just an fyi.
sooo...theres this idea.
bikes with removable steel rear piece, later made aluminum rear models. Really nice to ride.

uni blade fork. was also made in 24". I tried one once. Freaked me out. The company was started by the guy who owned redline.

Suspension aint new to BMX either I give you the 1973 Matthews Monoshock.

Also, Theres carbon composite forks on BMX race bikes and crusiers. And then there was the titanium experiments of the early 90s. hmm, im getting to excited. I stop now. 'cept to add yes, the basic idea of BMX hasent changed. but yeah...i dont know what you know about BMX.