The more I'm thinking about Shipwrecked beeing a standalone expansion, the more it makes sense. When I first heard about it, I must admit I was disappointed, most likely because in the first announcement there was no talk about it at all. At this point it was my wish to see a bigger world added to the DS universe, which would make in first place the longterm survival in the base game more interesting and varied. But now I see that there are a lot of balancing and gameplay issues which would make it kind of hard to mix the worlds together. Yes, there could be solutions that were already mentioned to put Shipwrecked into the vanilla game, but I'm quite unsure if they will lead to a better game experience. Moreover we don't know all the new features yet, so there could be more content that doesn't fit in the old world. For example new characters: Let's say they are planning to add Wilbur the monkey to the game, who will have some kind of bonuses regarding the new island monkeys. This character would be more or less useless in the old map. Furtermore the already revealed character Woodlegs will most likely have some pirate abbilities / bonuses (sailing?,treasures?...) which can't be used in vanilla DS. One of the biggest problems will remain the water, I guess. If they don't change the old water into beeing compatible with ships and boats the only solution seems to be a portal to the new world. But it doesn't seems that elegant when your heading back to the old world, being able to build a boat and the character says: "I'm not able to set sail here because ...(whatever)..." If I understood it correctly there will be new (stormy) seasons in Shipwrecked and the old seasons will not be featured in the expansion. So for example you would be able to flee the winter and head to the tropical island for that season. This sounds a bit boring to me. A solution could be that the portal is frozen in winter, so you can't use it. Smart solution? Another problem which I already talked about are the followers. What's with Chester? He can't swim and I guess it will be technical hard to implant when you are entering a boat that he still follows. These are just some of the gameplay issues I see if you mix the worlds and I'm pretty sure there will be many more (for example the giants)... All in all I think we can be very happy that we will get new single player content and if it's standalone content it's still way better then none (which I was thinking we would get two month ago). So lets keep calm and wait for more details from Klei and Capy, because I'm pretty sure that they are giving the best they can to make Shipwrecked as good as possible. Besides that I still hope we will get any of the not "multiplayer only" content from DST at some point for the singleplayer DS (better walls, Lavae Egg, mountable Beefalos...) which would be very very cool.