Yeah at the beginning of the Year I heard a rumored July/August for the movies box set and a October/November for Crusade set. But since nothing has been officially announced yet we will have to wait and see but it is almost certain that both are coming at some point.
When giving a general update about projects he was involved with last year JMS almost casually mentioned that WB had signed off on both a movie boxed set and Crusade for DVD release sometime in 2004. He also noted that the movie set would include new editions of The Gathering and In the Beginning with commentary tracks from him, but didn't indicate if there would be other extras on those films or the others in the set, or if the first two films released would get new transfers and/or Dolby Digital sound remixes. (The first double feature "test disc" was done on the cheap and both the visuals and sound came in for some criticism, although both were presented in their correct aspect ratios - 4:3 for TG and 16:9 for ItB, and the latter was enhanced for widescreen TVs.)
The only thing he indicated about Crusade is that it would probably follow the movie set, which makes sense because it comes after all the TV movies in the over-all future history. (And A Call to Arms specifically sets up the mission of the Excalibur and the backstory of the plague that would have dominated most of S1 and part of S2 had Crusade continued.)
The most recent telefilm, the unsold pilot for B5: The Legend of the Rangers, will apparently be released separately, since it is less connected to the main story of the original series.
Some UK sites are apparently listing an upcoming movie set of River of Souls, Thirdspace and A Call to Arms. But the R2 releases may generally be different since the PAL versions of TG and ItB were originally released on rather pricey separate discs, which might make people less inclined to "buy them again" in a full movie set than U.S. fans who only paid $12 to $15 for both films originally and would now be getting "upgraded" versions in a new boxed set.