The big problem I have with JMS' comment on looking to the horizon is this ... assuming that it does refer to a future release of either the full 5 movie set or a re-release of ItB and tG what on earth makes WHV think that people will wait.
If there are enough potential buyers (or re-buyers) to justify a SE re-release of the first two movies by themselves, then surely there are enough to justify putting the movies in with the set. Agreed, there will be some who complain about this, but how many is a total unknown.
Plus, how many potential buyers will put off buying the 3 movie set, because JMS has intimated that a full set is coming soon? Enough to hit sales of the 3 movie set sufficiently for WHV to think a further release is not economic? Who knows.
Then, having waited, when the further release is actually just a re-release of ItB and tG, how many will bother to buy both sets? And how many will go to R1 for a single box set of all the movies?
And how many will just look at it right now, say "I just can't be doing with all this" and go get R1 on 17 August?
We really could do with some common sense from WHV in R2.
Oh ... and S5 would be nice, too.
PS. I am aware that those of us who hang out on message boards like this are a small minority of B5's DVD sales base, so I am probably over-egging this, but hey I'm only human(ish).