First, we received confirmation from CCP Nullarbor on the Tweetfleet Slack structure channel that the size of a constructed Large Citadel will fit inside an Orca. This is great news for C2 through C4 space. In order to deploy a Large, we will not have to build a freighter inside our hole just to launch it. C1 space, still too small to take an Orca, will have to jump through extra hoops if they want to build a Large but that space isn't one that you normally would expect would need such a structure.
Second, on the topic of wormhole hunting, our friend Longinious Spear gave a talk at EVE Vegas on this very subject. It is now online and I definitely encourage you to watch.