I release stuff that's almost all OGC all the time, like my recent Modern20 PDF.
If you're asking about the "far future" of 8 months from now and 4e, that depends on what the new OGL ends up looking like more than anything.
But in general, I'm a big believer in the OGL. In Modern20, the only thing we declared PI was the name.
I know some companies are worried about "poaching", and thus crippled their OGC (especially early on) but it hasn't ever really happened in a way that I considered troubling.
Mostly for reasons of pride. There's not really enough money at stake to attempt to rip something off, so why not try and prove that you can do it better?
Chuck