Though Warner Bros. acknowledges that Batman: Arkham Origins suffers game-breaking bugs which stop some players from progressing through the game, it may never fix them. Instead, the development team is focused on the upcoming DLC story campaign. Between this and scrapping the Wii U edition of that DLC, it seems WB's commitment to the game is flagging.
"The team is currently working hard on the upcoming story DLC and there currently are no plans for releasing another patch to address the issues that have been reported on the forums," WB's Arkham series community manager explained on Origins' forums (via NeoGAF).
"If we do move forward with creating a new patch, it will try to address the progression blocking bugs for players, not the minor glitches that do not prevent one from continuing to play. The issues that are not progression blockers will unfortunately no longer be addressed."
It's broadly understood that today's sprawling big-budget open-world games are unlikely to ever be wholly bug-free, given the constraints of budgeting and how complex they are on every level of creation, but it's not unreasonable to expect players be able to finish them.