It's certainly a valid question — what modes could be added, etc.
Just to play armchair designer for a second, I think some people would like to see a more fulsome career mode that actually has some presentational depth, a la NBA 2K. There's also room for an All-Star Competition or another novelty mode, such as minigames or drills. FIFA-style drills would really complement the on-ice trainer. A full practice mode for EASHL teams would be welcome, too.
Hopefully my review conveyed the enjoyment I had with the alterations they made to existing modes, but I would like to see the developers attempt something more than just iteration for their base modes. It's been quite a few years with the same template for these modes, even if some changes have added a bit of air in the tires.