Probably no franchise, maybe not even a season mode.
Make the game editable, which is why APF failed to do. Concentrate on the AI and physics and consider selling it as a downloadable-only game for say $20.
Then do updates later for $5-10 as they refine the engine.
They have to try to build up a following over several years, which is their only chance of making EA license the tech or buy them out.
Rumor is that APF only has the Legends license for only the one game, so it seems like APF 2K8 was an all or nothing release.
I really like how they describe the blocking model they will shoot for:
BTW, backbreakergame.com.euphoria in Blocks
So where else will euphoria be used in Backbreaker? euphoria will be used anywhere where a physical confrontation or interaction might occur. One key area of this type will be in blocking situations. One common problem with current next-gen football titles is the ‘suction blocking’ that frequently occurs. This happens when a player from the offensive and defensive team come into close proximity, and the defender gets ‘sucked’ into a block with the offensive player. Like a tackle animation, this is an artefact of the pre-canned blocking animation which causes the motion to be predetermined and unrealistic. In real football, the angle at which the defensive player is pursuing a ball carrier and the angle and timing at which an offensive blocker engages this defender creates a wide spectrum of block outcomes.
Like tackles, each block should be unique and authentic to the situation. More specifically, this includes the position of the players, their personal characteristics, the angle and timing in addition to the the other factors mentioned above (in calculating the dynamics of interactions in tackles). euphoria is able to calculate these factors on the fly, using those players’ behaviors to guide them, and then calculate the physics components to create an authentic blocking confrontation to the actual situation on the field. Now, blockers might completely miss or get run over by a defender, pancake or engage a defender and drive him backward or get driven back into the ball carrier themselves. They may just get a big enough piece of a defender tracking the running back to slow him down long enough for the back to get through the hole, or they might slow him down, but not enough as the defender makes a tackles while fighting past a block to plug a hole.