My 5 cents:
Mulan & partner got an exceptionally likable game here. Thats why a lot of people support, check and hope for its continuation.
Does it continue, tho?
Lets be honest, its hard to be any slower than this and people are waiting like champions for new content.
Given the amount of financial support its hard to understand how it could possibly be still so "small".
Other devs have put out a lot more with a lot less support in way less time.
I myself played this years ago and just recently stumbled into it, quite surprised it still existed. And I cant say the content got expanded noticably... Which is sad.
However WHEN there is new content, its great stuff.
Not like a somewhat sane update-rate would decrease the financial support... and I doubt the finale of Defenestration is anywhere near anyway. So I think you would NOT be killing a cash-cow by putting in some more effort.