Great, as time goes on, we might get a better picture thanks to bug/issues reports.
Sorry but not likely anytime soon, we are already trying to understand Wipeout 1/XL and slightly looking at WO3. But for WO64 this will certainly be another story. AFAIK the content of the game is not easily available (no files to look at, just a ROM and this clearly requires strong knowledge of MIPS/R4000, not my case). Never say never though