Agreed; it seems they most want to do the most relevant stuff to lead in to the Forever War, in order to wrap things up on the 25th anniversary. Perhaps after that, if sales are good, they'll go back and fill in the blanks, maybe re-release the Future Tense stuff chronologically.
Speaking of the 25th anniversary, I would so love it if the Future Turtles, Ninjara, Verm-X, or Armaggon showed up in TMNT Smash-Up.