I wouldn't take a current lack of bids on personal houses on the new worlds as a sign of anything at this point. We're only 30 hours into a 120 hour bidding period. I imagine by now most players know to wait as long as possible with their single entry to try to make it count. Other bids won't deter someone if that's the plot they want and that plot in every ward already has other bidders.

The more interesting number will be the total number of bids once the entry period ends. That will be the number of players looking for a personal house (at least as of this lottery period).