It does seem like the vehicle case packouts are being steered in certain directions. After all of the talk on a number of message boards complaining about another Jedi Starfighter repaint, look what we got in the most current assault vehicle case: the Saesee Tiin Jedi Starfighter is one per case, and the white TIE Fighter is packed in that case in greater numbers. In this regard it seems that Hasbro is listening to collectors, but they're still interested in getting older vehicles out to people who are coming late to the party.
The guiding force here seems to be Hasbro's desire to keep the major hero vehicles in the mix. And the people buying those pieces don't appear to be the core collecting crowd that's out here on the web day in, day out. Hasbro is going by sales numbers when they come up with reissues like the Obi-Wan Kenobi starfighter which has now been a part of three seperate lines.
Here's my personal hope: that the talk of a hyperdrive ring in the Q&A sessions was real, and perhaps the reason we're getting these reissues is to have something on the market that could mate with that hyperdrive ring.