The train is still running and the cast has been told that there will be no impact to train service through the entire rehab.
As for the morning show...it will be modified or canceled when they move to the front side of the station as they are going to be making the Mickey floral smaller and extending the platform that the dancers use. No word yet on alteration, but time will tell on that one. As for now it is still being done every morning (except the early entry morning).
Lockers are still avalaible but you have to go to the far right side (the side where the stroller/wheelchair rental is). As the construction wall has blocked off most of the lower level of the train station.
As for the view from the front, as of right now it is not affected (as you can see from the previous photos). When they do move to the front side of the station they will be using a photo scrim, instead of the green "tarp" pictured in the park side photos. With the photo scrim it is basically a picture of what the station looks like on the covering so that it will still have the same affect from the distance and in photos. They used this in Italy at Epcot when it was under rehab and it was really cool, it really looked perfect for photos.