The lights are on
If Activision decides to do a sequel to Call of Duty: Black Ops, they now have the website name to do it.
As spotted by Fusible.com, the publisher recently acquired the domain name BlackOps2.com for an undisclosed amount. The domain name was originally registered shortly after the first Black Ops title was announced in May 2010, however the owner was never identified.
The report points out the original registration was under "Domains by Proxy" by GoDaddy but has now switched to internet brand protection company MarkMonitor, an Activision client. In August 2011, Activision acquired the domain names all the way up to Black Ops 6 and Modern Warfare 6, however, a "Black Ops 2" web registration was missing at the time.
It should be noted that URL registrations don't necessarily mean the games will ever be developed and released. Activision may be future-proofing its brands in case it decides to go forward with them.