I love that you liked this! Yeah it get's tricky with when to introduce more cycles and which ones especially if you don't know requirements beforehand :D. I have many ideas for one time buildings and improvements and certainly removal or merging of buildings or even adding new grow cycles would be interesting. It will take a lot of trials and errors now to come up with something that won't destroy the core of the game but make it more balanced and more than one 'build' friendly.