SalamancerHaven't talked to enigma or anyone about this, but if TFTV did develop a new spec HUD, I'd say go ahead and release it to the public for a nominal fee. Like, a 99 cent download from this site. Proceeds go to the HUD devs.
At the moment, a casting branch of my HUD is being used, with some minor edits to make it a bit more cast-friendly. There are many more changes Lange and I have discussed, but I've been busy so I'm not sure when I'll get around to them. However, under no circumstances will this be exclusively for TF.tv.
If somebody wants to create a HUD better suited to casting, please go ahead; I might even be willing to help out with some things. You should probably talk to Lange before you put any serious work into it, as there are certain things he's looking for.