It is not hard to figure out that a lot of people (Including me) are going to create large gardening homes after the update. To compensate for this, I have several ideas.
A few of them are for livestock care. As ronin elf mentioned in another thread here, super piggy feeders. Also, larger/more efficient meat/milk collectors.
As for gardening, a sprinkler and a seed extractor would very helpful. Perhaps, for the sprinkler, we would have the option to build wells to give them their water. Seed extractors would have the same end-product as piggies and plops do, but work like a still.
Some more (Edited) improvements: A 'tractor', functioning as a hoe, but you could hoe, say, 1 column of your garden at a time, instead of one plot. With the 4-plot-tall columns we have now, and hopefully in the future, these could increase speed by 4x. (Crazy, I know.)
A seed tosser. You put your seeds in the machine, and it throws (plants) them in your garden. If you have multiple gardens, you would need 1 machine per garden.
Feedback? Support?