-You can travel to 3 different places through the Travel Agency- Snow Country, Ancient Ruins and a Sakura (Cherry Blossom) place. Here you can find rare and exclusive items.
-There is a mine, where you can find a lot of materials. It's better than the mine in TTOTT.
Here's more info.
-After your married (idk if this is for boys only) you can place an order with spouse two times a week (there are certain days) and then they will go to the mountain and collect all, if not most, of the items there and put them in your fridge or item box.
-Food and other things will not go bad!

They still have the 5 star ranking, but it won't say 'super fresh', 'getting bad', etc.
-You can customize your town however you want. You can move fields, animal houses, people's houses, your own house... and more!
-On every 11th of each month, there will be a Garden Tour, and you will decorate your Garden Exhibition place, and the town will come see it. After they would pay how much they feel it's worth seeing. So you should take the time to decorate it with fancy things!
-Fields I believe are the easiest things to make. All you do is buy soil (which is FREE) and make it. Later you unlock higher quality fields, which make your crops grow faster.
-There are three building styles- Europeon, Japanese and Traditional.
-You can customize the inside of your house.
-The main storyline is to bring life back to echo village. There will be 5 main quests (some are like ship 10 honey, ship 30 yams, etc) and after you finish all 5, you can rename your village!
-Each contest is divided into categories. Crops can include vegetables, flowers, etc. Same for food. And the cooking contests aren't luck-based like in TTOTT, whee you can still lose even if you have a 5-star dish.
-You can choose you wedding attire! For girls-a cute dress or mature dress & two different veils. For boys- White, grey or black tuxedo.
-You can share meals with your spouse, and I believe even when you're dating, you still get one free daily meal.
-If you go to the doctor, they will give you a shot (which costs 1,000 G) that will replenish all your stamina.
-You get a pitchfork to start with. (I think it cleans your animals waste lol)
-You still have a 6-character limit for naming your character and animals...
-If you talk to Neil you can go to Animal Land. If you leave your livestock there for 50+ game hours, they will permanently produce great items. (Like great wool) You can't bring chickens, so you have to make your chickens win the chicken festival.
-Money is very easy to make, but to be fair, it's not very important in the game. Building things relies heavily on materials like lumber, stone, etc.