As per my thread, I have the AB coils on my 06 and there are for sure some drawbacks but the off road performance of the terrain response and EAS 'solid axle' feature aren't on that list.
However because AB is a L8 competitor I don't really expect we'll see them wanting to fit that particular kit. But a true coilover option rather than Macpherson strut type of the AB kit would be interesting to see. The hardware modification is pretty straight forward but ultimately the main difficulty is getting the TR system to play ball without EAS on the team.
Love what L8 has been able to accomplish with their P38 project, looking forward to more of the same here.