As long as the project is not abandoned (which I don't think it will, been lurking here for a while now ^^), I'm fine with it... ;p
Also, with the prologue, you ave a base from which to build the "full" game, so personally, I think you will need less time to build the actual content, but more to debug it...I've been betatester for a couple of mods, and boy was I surprised when I saw how sloppy some of the code was ingame...heh, xwings flying nose down comes to mind ^^
Also, I'm quite ashamed to tell you I never actually played the WC games; although I fit into the agegroup, I got into computer games later than most others...I'm a bookworm at heart ^^
Well, if you ever need a beta without any knowledge whatsoever(ok not really...just remembered that I watched the WC movie...some time ago...don't know much about its story anymore except that I did like it...) about WC, feel free to ask, although my time is going to be a little limited for the next couple of months...