Now those unusually warm, dry & long summers are the new normal and they include periods of even hotter weather. It's harder to lump two or more hydrozones into the same popup spray zone as before.
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If you currently rely on popups then ripping up your established bed to change the layout of the current zone or change the layout of the current zone and install a second popup zone in the same bed...is not a solution.
'Time to convert to drip.
A hydrozone is a grouping of plants that all have sufficiently similar water needs such that they can be served by a single irrigation zone or circuit.
Some plants need infrequent shallow watering and no more or they decline. Others need frequent shallow watering; not much less and not much more or they decline. Still others need infrequent and deep watering or they won't weather the new climate. They'll decline.
These hydrozones are routinely in the same garden bed. In the past, with our mild climate, some plants did ok with more water and others with less water. We could have them in the same bed with a single popup sprinkler zone with mostly, relatively, minimal-ish fuss...
...provided we didn't have an unusually warm, dry or long summer. Each time we had such a summer some plants looked awful and others died.