Have the "info" line http.request's include the hostname (eg. "GET http://host.name.com/some/path/file.html")
Add a new column value that fully encompases a TCP quadruple, ordered in a uniform way, so that you can sort by it, to get a very good guess at each stream in sucession. This would show the time sequence within each stream, without having to do the "follow TCP stream" for each one
Include new columns with the following info:
TCP payload data size (eg. since a decent number of TCP packets are simply ACKs and don't contain interesting info from an app-layer perspective)
Can the tcp.analysis.retransmission code be easily improved? It often misses packets, and seems to completely miss three-way-handshake retransmissions.