[quote name='randomkid']Well, you know, just trying to see if something like this has ever happened in the past before. If no one can think of any examples of PSN games dropping in price a second time months later after a temporary sale, then I'll know that it's unlikely to ever happen.[/QUOTE]
Well, I think the bigger point being that PSN sales are few and far between enough that it's hard to say when or even if a particular title will ever go on sale. There are some titles that have gone on sale multiple times, there are some titles that have only been on sale once, and there are many titles that have never been on sale and may or may not ever go on sale. So asking about one specific title is kind of like asking people to predict the future -- you'd be just as well off asking your magic 8-ball. It might go on sale again, it might not. If it does, it may be next week, next month, next year, or two years from now. Unless you've got an inside line with Sony or the developer, it's impossible to say (and even they probably don't know, if it's not in any immediate plans).
Basically, if you care about the game enough, you might as well go ahead and buy it. If you're on the fence, then wait, but don't expect anything.