Well, today is Wednesday and CJPC plans to work some more on it, so it really depends on how quickly he is able to get it done. If he does it later today, then there is a good chance they could surface publically before Sunday so we'll see how things go.
Yes, you do not need a PS3 once you have the dumps... anyone with the time and talent can use IDA (on their PC) and xorloser's PS3 plug-ins to begin reverse-engineering the code and looking for "interesting" things.
Probably not likely, as reversing the HV dumps is extremely tedious and time-consuming so if anything good comes out of it chances are it will be a ways off... but the more people working on it, the better of course!
As I mentioned in another thread, one of the areas CJPC is seeking to examine from the dump is the boot flag data, as he is interested in being able to convert his Service Mode PS3 to a Debug one, or better yet Retail PS3 consoles to Debug units optimistically.