Career Resurrection: While the name "ADV Films" was retired in 2009, the studio never really went away. As of 2013, Sentai Filmworks rebooted ADV when they released Elfen Lied.
Keep Circulating the Tapes: For most of their licenses, this is becoming less of an issue. Sentai Filmworks, Discotek Media and Funimation are committed to releasing their works. However, odds of some of their releases (such as Gunsmith Cats or Sister Princess) are slim. So your best bet is to find these at local stores.
Promoted Fanboy: Founders John Ledford, Matt Greenfield and David Williams were all fans of anime.
In 2007, ADV was going to partner with Geneon for their releases due to the latter's financial problems, but those plans fell through and Geneon was shut down not long after that.
During its last years as a licensing company, ADV was also going to produce the dub for Tengen Toppa Gurren Lagann before losing the rights. Bandai Entertainment would eventually acquire the rights to the series sometime later and another dub was produced at Bang Zoom! Entertainment.
At the 2003 Cannes festival, an announcement was made about a three-way deal between Gainax, Weta Workshop and ADV to produce a Live Action Adaptation of Neon Genesis Evangelion. However, it got stuck in Development Hell and died in 2009 with ADV's original incarnation. It's not likely to come back to life with the Sentai reboot of ADV, though, as it turns out WETA was the originator of and impetus behind the idea.