With the Antiquities, the ever expanding list of zone achievements we are acquiring, music boxes, statuettes and crown goodies, our homes are filled up to the max and and I mean to the max! And now we're going to be adding roaming NPC's (which is totally off the hook cool!) and that means something in the house has to go....total bummer man....so you're not fooling anyone ZOS, we have a couple non-combat pets that have expanded our character inventory by 5 (each pet) so bust a move and come up with something crafty that gives us home owners something to use (or buy) that adds additional home slots.
Make it a quest achievement, you have to do X,Y & Z to get "this item" and it will allow you additional 100 slots (or whatever) for your house or just put it in the crown store.
Cheers!