Never.

If in the extreme remote chance ever comes, they will pull the usual "barely noticeable" increase and it wont make enough of a difference.
My home has been 1/2 filled for YEARS.

Unfortunately they ignored requests long enough that I have 0 faith, it's too late,. The joy of it, has simply been ignored too long.

So many of us have been waiting for that increase since day ONE of housing.

I have asked on the forums many times and through in-game suggestions thousands of times.
Nope.. they dont give a sh*t....

Sadly I give up hope on this. Again they go 1/4 of the way.