Our kids are all still sharing one room. We made that decision almost two years ago now and even when we moved again, they got moved into the same room again. They LOVE it. Last week I mentioned to Anthony that maybe we should consider moving Sebastian and Gianna into their own room since the girls have been wanting to stay up later ("since we're older") and we're almost getting closer to the point where they could stand to have their own space with some privacy. But you guys, they really love it so much that we both came to the conclusion that it's not quite time yet.
So, in the same room they stay. But, as you can imagine, it's not the easiest as far as logistics go. Their room isn't tiny but it's definitely not huge either (I think the measurements are around 12' x 13'). The two sets of bunk beds fit fine plus the long dresser that holds most of the clothes but that's about all that fits. And really, that's all we need to fit in this room. Next door there's a dedicated play room (that will eventually become Sebastian and Gianna's room and even farther into the future, just Sebastian's room) and all of their toys are corralled there, so there's no need for a toy space in their bedroom.
With four kids though, comes a good amount of clothing, as you can imagine. I have really purged and learned to intentionally buy clothes they really need in the past few years so their stash isn't as big as the twins' once was - they had a whole lot in their first years. We're not minimalists (yet?), more capsule-wardrobe fans, so I can truly say they don't have an over abundance and it feels really good. And, it's the only way this whole set-up would work without having to overflow into another room. :)