I asked that question because it might mean waiting longer and most of us are hungry to start but in the long run it would be a big deal to wait...
Possibly. The fact that this rating system was implemented by Donny Moore, who has since left, means that they could very well move to change the structure. But it all depends on how and when. It could take quite a while to do a significant ratings update and I'm not sure the way it is now is horrible. Its not perfect, but I don't know if its a big enough issue to put the leagues on hold even further. We will have to wait and see.
So he basically admitted the whole tethering issue is seriously limiting madden, but it's too much work to change that...
It would mean a complete overhaul to the engine. If I remember reading this correctly, the current engine was in development for around two years before they debuted it in (I believe) Madden 25. The current engine, from what I understand, does not allow for the kind of kinetics that would solve this. So, creating a brand new engine would be the only way to get this done. However, this engine is also used by all of the other EA sports games (as I understand it) so a lot of planning and development would need to be done to get it right.
That is one of the things that most people do not understand about how these games are made. Some things, even very little things, are parts of much bigger systems and aren't easily "tuned" or "patched." I'm sure there is already another engine in development (or at least planning) but it could be a couple years before we see it. In the meantime, some things we have to live with and others they just have to try and make work the best that they can within the framework with which they are working.