Is there a default domain for these tlds? Let's take .home for example. How will this work when typing it into a browser?
I believe it's possible to set things up so that "home" or "co.uk" on their own will work. As below, my memory is hazy, and I have no idea how many RFCs this behaviour might violate, but I certainly remember us doing so.
My background: many, many years ago, I used to work for a minor country-code tld, and we set up fun email addresses such as: a@cctld or t@cctld (for Tom ;-)). My memory is hazy, but I think this violates some RFC somewhere. Mail still got delivered, though.