For as much as Hive is supposed to be a social blockchain with post and vote based rewards, and communities, at times it feels like there is isolation, and the communities and apps are different islands. I don't know if it would require a different interface, but it would be nice if different communities will promote and collaborate with other communities and apps. The Foodies can work with 3Speak to promote cooking videos, Weekend experiences can collaborate with Actifit to have a Hive fun run or something.
I have seen some collaborations lately, like DCrops and Splinterlands, POSH and Holozing. But it would be nice to see more, so that new and old users can do more in the Hive ecosystem.