To be honest, when I have first seen the instructional videos of The Game of Thrones, I though: gosh, they ripped off Babylon 5 CCG. Truly, some of the mechanics are quite similar but B5 CCG seems to be even more complex and provides more flexibility in terms of different card types and effects (even the inclusion of the Shadows, Vorlons and Babylon 5 as independent entities in the game is a fascinating aspect).
I do agree in a sense that the time of Babylon 5 is bit on the low - it is almost four years since the last movie and it may seem that since then the franchise did not produce anything valuable. (Last hope being the RPG and the miniature game from Mongoose Publishing, which the latter of ceased production of ACTA in early 2008). However, I would not underestimate the power of this franchise... The following is a very strong one and it is widely known and totally timeless in its storytelling.
I would love to see B5 resurrected in an LCG format (or a Board Game format)... like BSG or other franchises here at FFG. And maybe it would also get a chance for a new series or a movie. (Would love that!) Sure, it is easier to produce and sell a byproduct of a story-telling series with it running (see BSG) or being more known (ST - after spawning x different series). And I surely see the low cost of a production which does not have to pay its franchise fees... true. However - can it produce such a lore of power and mythology as Babylon 5? I doubt it.