I don't think the same system of editing players would be patched in. I think an updated new version of editing will be patched in. That's my guess if it happens.
I think it was scraped in the first place because it didn't work with CCM and it certainly didn't work with the NCAA imports. I think they scraped it for the year to fix those issues and bring them back when they are ready under a new system.
Why spend all your time fixing something that doesn't work when you can create new and better additions (CCM and IE) with that time.
My guess is, after the outcry from the community, that editing will be a top priority to the EA dev team. And if the new development cycle for M14 has already started, they could be working on it right now. If that's the case, and this is only a guess, maybe they are far enough along to patch in a simplified version with Jersey number and equipment editing in.
Here's hoping!