Could this perhaps signal the end of the multiple Custodians of Examination Papers in favour of a more centralised system of examination?
What leads you to conclude that this is or will be the case ? Where does it say that we will be rid of Nationally set exam questions ?
A European centralized system of examination is inevitably fairer (remember the JAA-IR farce in Spain !), preferably one where each question type is in the public domain, (as well as the subject matter to study). In this way, you can prune the biggest nonsense and replace it with more practically relevant matter, perhaps with a more modern (audio)(visual) approach.
The best system for PPL theoretical instruction is then one that combines (interactive) DVD, provided by the ground school / instructor, with the public domain reading material and a question drill database (based on the public domain subset). An audio version of the public domain reading material could supplement the learning process, while driving your car (CD/USB) or using public transport (ipod/mpX) on way to work.
The goal should be to get as many students as possible, many many more than the present intake, to pass the theoretical exams (without compromising on safety relevant matters), but in a way that the learning experience is a pleasant one.