I can only go by what my 922 shows. Some are getting the 410 channel numbers some are getting the 4DTV channel numbers. I think it has to do if you had the original old ku X4 map in the DSR or not, mine did. I don't think that will be an issue next year except for channel numbers. I kinda like having the 4DTV numbers since I'm more familiar with them.
I think there will be variables but as long as we can subscribe that shouldn't be an issue. From our testing it looks like the guide will not work if you retain all functionality. If you need that to work it looks like the 4D needs to be a X4 brick. (I think I'm saying too much for now)
It would appear that your X4 is incorrect because mine is matching the channel numbers shown here as far as I can tell.
http://skyvision.com/pages/information_center/DSR410channels.pdf