Most of us on this forum have gone through this phase. I've played every version of Civ from 1 through 6, and as a huge fan of Civ 5, I was crushed by Civ 6, the first Civ game I truly didn't enjoy. Many others had it happen with Civ 5, a game they couldn't stand compared to Civ 4, a game they loved. The main difference was most of us waited to play the latest version before deciding we didn't like it. Or at least, waited for the completed game to be released so they could peruse the reviews before deciding it wasn't for us.
My main point is that each game in the series has been a different game than the one before it. Hoping for a "one civ only" version of Civ 7 seems to me to like hoping for a no-1UPT version of Civ 5. The dev team has moved on and so has the series. If you're a long-term civ fan, it's unlikely that Civ 7 will be your favourite - you're most likely going to prefer one of Civ 3, 4, 5 or 6, just because there's 4 of them and only 1 of the latest game. But a few years from now this forum will likely have a large contingent of people who prefer Civ 7 - assuming the dev team has made a good game that appeals to lots of players, even if not to you.