Just been online and noticed that we no longer get directed to the old disney website, we can now view the new one with the link to MDE and all associated features inc FP+ (although I can't make any, but then I'm not going until Dec.)
So far I can view my dining reservations on MDE (both online and using the app), have named all the people in our group and have also just recently been able to link my MVMCP tickets and linked them to individuals in my party. The only thing I can't do yet is link my 14 day ultimate email confirmation (I think these are called Will Call tickets) but will keep trying.
we're off to saratoga springs resort in early september. on MDE i can see all my dining reservations and have been able to make a room request using the online check-in link. unable to use fastpass+ though. i think it's limited at the moment.