I think it will be since it’s consistent across EA games. The original GM Connected was a good idea in principle, but it was so buggy and slow that it made it a total mess. I think people forget just how bad everything else around the mode was. That’s why most people stopped playing it.
If it’s like the two games you mentioned with all of the features that NHL franchise mode already provides, then it will be great. I personally want them to get the gameplay, AI, and presentation down first before they attempt it though. If the game plays anything like the last 3 years, I won’t bother playing at all even if they add the mode.