DrIstvaan: In theory it might have been so, but I clearly recall quite a number of games were released on Thursdays, official or not.
Yeah, thursday was a traditional release day for a year or so. Doesn't get any more "official" than that, really. At any rate, what they've always done, before this summer at least, is to release two games per week. Sometimes even three. They need to start doing that again, because one game per week/four games a month is not enough.
StingingVelvet: Depending on the catalogue options for after it, they should probably milk the Hasbro thing for as long as possible, which means 1 a week.
Kind of boring for people who aren't into RPGs, though...
Edit: I should say, though, that I can understand that they're letting Planescape: Torment have the spotlight for a while longer than "usual". It'll be a while before they get anything this big again. It's the obvious highlight of the Hasbro-catalog too, with the exception of BG2, the rest of the forthcoming releases are just your "average" good old games - meaning good, but nothing special.