why is there no model for him yet and when will there be one i am wanting one for my d.e army

Well the rumoured "2nd wave" for tyranids model range is going to be august apparently..
So you'll be in the queue behind that.
Not having a model is a nice thing, means everyone and their great uncle has to accept your awesome homebrew model as the most legit thing in the world.

ive heard de 2nd wave is going to be before then KMB... June/July.

As for the Baron, no one knows if he'll be in that 2nd wave though... so why not try making one similar to the one I made for him...

painting-modelling/de-conversion-baron-sathonyx-t4971.html

Well your the one who talks direct with these people so I bow to your greater knowledge .......lol

I thought the 2nd wave was going to be late Q1 or early Q2 because the new Necron Codex is slated for late Q2 early Q3?
DE 2nd wave is supposed to include the venom.
Don't know about characters.
the Baron is just on a skyboard, albeit his is custom granting extra strength.
As KInG said, he should be easy enough to convert, just give the skyboard a wild angle.
Of course, modeling his elegant cape might be a bit of a PITA, but not impossible. Right KInG?