Consider the following:
Increase interior room entry doors to 36" for aging in place considerations.
Grab bars in the bathrooms for the above reason. Put the blocking in the framing now if you do not want the bars now.
Use bifold closet doors instead of pocket doors. This will allow you to access the closets with a wider door(s).
A pantry for the kitchen. Where do you plan to store your groceries?
Also, consider sustainment costs such as utilities, maintenance, etc. A well designed energy efficient home that has low heating and cooling costs will save you money in the long term. Geo thermal and/or solar help in this arena. The building exterior materials that you use also affect your long term costs. Do you want to paint your home every x years or would you like something that does not require this effort.