An official port of RealPlayer isn't in the cards. And I also don't understand the Helix project... I originally thought the point was to "bring fire to the masses", whereby Real would quickly release precompiled codecs for a bunch of processors, and using some kind of generic library interface. In reality, Helix packages exist only for Win32 and Linux platforms, and in their native library formats. One of these days I really must get on a Helix list and have someone explain it to me...
That said, Frogger interfaces with the binary codecs in Real's closed-source Linux PPC player, and Moovid will soon, too. I'd forgotten about streaming. HTTP streaming is trivial, and the latest RTSP streaming should all be documented on the Helix site, although it's largely an open standard anyway. Real's old PNM streaming is a sticking point, though, since lots of old servers use it, and I don't think Helix bothers with it. It's very closed-source and mysterious, including a binary communication channel and some kind of encoding/encryption on the incoming stream...but I think the Amiga coders are up to the challenge. :-)
I'm actually working at rewriting the StreamRA.rexx script that goes along with the open-source Amiga RealAudio player, and may take a crack at PNM myself sometime. It dates back to roughly RealAudio 2, so it can't be that high-tech.
68K support won't get much better, but full PPC support (and without the shackes of spyware) is virtually a given. :-)
Todd