IcePrick,
the titles and credits are indeed replaced and it's probably a side effect of a new OCN scan. So this trade off is worth it IMO. But of course, that's no excuse, they could have done it right and recreated the proper fonts and language.
As for the audio tracks, I'm not knowledgeable in HK LD, but if there's a better source, it sure would be a fantastic welcome.
The only other thing I could say about PQ, is that it's a bit on the bright side, while the DVD had some black crush. Maybe the ideal would be somewhere in between.
But anyway, it's hard to complain in face of the new 4k scan (supposedly so), specially considering what a hard task it is to find quality HK cinema material.