With the announcement of player housing -finally, it would be nice if Blizz developed and implemented new professions to manage that.
for crafting I think wood- and stonework would be a nice fit. Gathering, since we already have mining, lumbering, to collect the actual wood, would be a nice addition to our limited roster of gathering activities.
of course the existing professions can take part of housing items in any numerous way, especially blacksmithing, herbalism for shrubbery and collecting seeds etc. Even enchanting would be a brilliant to offer magical household item (sorry, but I need to kill monster, I don’t have time to vacuum the place)
and something like a construction skill would be welcome.