Personally, and I never thought about this until tonight so I probably haven't considered all the ways in which this is a stupid idea, I'd like to maybe see them make the bat bigger. If there's a way to do that without substantially increasing the weight and significantly reducing bat speed, I'd like to see how that plays out.
Feel like increasing the sweet spot even marginally would result in so many more balls in play and create an offensive boom. And that just feels like less drastic of a change than doing something wild with the mound like pushing it back, which I've seen a lot of people suggest. Changing the mound would require pitchers to go through a massive adjustment and I don't think making the bat bigger would be as big of awkward of an adjustment for batters.
Obviously I want to see an automated strike zone but that's more so because I f***ing hate umpires. When it comes to offense, the robo zone will help but I don't know if it entirely resolves the balls in play situation. Will probably just mean a lot more walks, which is the most boring of the three true outcomes.