Yeah check out Stoot's reply towards the bottom of the discussion:
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We won't bring this back!
It seems awesome in comparison to having no choice but it wasn't really that interesting: From each template "level 0" street, there were two choices for the first upgrade to level 1. From each of those, there were a further two choices, so four L2 streets. And from each of those, another two choices, making a total of 8 maxed-out L3 streets.
That was it: dramatically more work for us, but an amount of choice that would be over-exhausted after a few dozen streets.
Instead, we have been laying the groundwork for the parts of the streets to individually upgradable allowing for (something much closer to) infinite choice/customizability. And, at least some of the upgrades should be functional as well as decorative (e.g., upgrading a shrine to a temple). It'll take a while to complete everything, but a few little parts of the should be ready "medium soon". And it will be much better than bringing back the old upgrade streets. Source