I would think that this would be an easy thing to find, but it there a running list that someone maintains that shows new Metasploit modules as they are released? One thing that I do is keep an eye on the Metasploit Framework page on GitHub, which is useful, but not exactly what I am looking for.
is there a running list that someone maintains that shows new Metasploit modules as they are released?
For that i think you want something like https://www.exploit-db.com/,
This will have a very up-to-date view of exploits recently made public, sorted by type.
New Metasploit modules will be in there as well, but that's just a small part of the exploits that are publicly released. Also using these will make the step from using just msfconsole to finding security holes yourself easier.
As mentioned, https://www.rapid7.com/db/modules/ Will have a comprehensive list of all previously released modules.