I think it all depends on what makes sense for the story. I'd just hope gutting the EU wasn't accidentally taking a step backwards towards simplifying Star Wars any more than it already is.
The Disney force is entirely different interpretation from the OT and Prequel force. So mentioning midiclorians wouldn't make a lick of sense in the Disney Universe anyway. I'm pretty sure you are aware of the differences between the two but I just wanted to point out the Force was addressed in the TFA promotional interviews, and from what JJ said they may have overhauled it. Doesn't quite explain Rey just yet, but I am guessing it will.
Light vs Dark force was also signaled by them to not really be a thing in the Disney universe either. Creatively, Kennedy wanted to get rid of My Team vs Your Team. I was trained this way and wear this flag, you were trained that way. Its still there, but I know JJ and Kennedy said there were creative new takes on the Force.
I think Episode 8 Last Jedi will get deeper into this new creative direction by Disney. I think the title itself is precisely about the aforementioned, and has much less to do with if Rey or Luke is the "last Jedi".
Its more about this new age of the Force, and defining what that looks like.
Typically the second movie in a trilogy would have a fuckload of pressure to execute on these ideas at the risk of the entire trilogy itself. So it is a safe assumption I think to assume this is a situation where Kennedy's heavy-handedness on creative is very much appreciated by Rian Johnson. You can imagine the tremendous pressure otherwise. But the guy is still a fucking beast for taking this movie on!