If the map is perfect in your eyes then definitely keep it... Villagers are really easy to get out and replace and if you go with a subpar map it will eventually come back and haunt you because you'll constantly be pondering whether or not to start over and try to get a better map.
I apologize if I offend you, but... I don't see why this should even be a choice or why you even asked lol. You can always get new villagers but you will never get another "perfect map". You'll probably be frustrated finding a new (perfect) map with decent villagers later on when you reset. (Hoped I helped some-what hah)
if i put another bridge on the other side and get that dumb house to move out and put like a coffee house or another resident house i think i would really like it. ; u ; then another one on the v left by the retail
I LOVE that map!!! I would keep it for sure, it's worth it. Your villagers can always leave, but who knows how long it will take you to get another map you like as much. I would snatch this map up right away haha, I love it so much!
In my opinion, it's harder resetting from the beginning for certain villagers rather than for a map, so I'd keep the map and just try to adopt the villagers you like from cycling threads and whatnot.