This is a sad day for Rescue Rangers fans, who had been treated to their first taste of fresh original official CDRR content since the TV series was cancelled back in the early 90s.
The only mention of this on the BOOM! studios website is in the forums, where a subscriber asked why CDRR was absent from the titles scheduled to be shipping in August 2011. The reason given was that issue #8 was to be the last issue “for the time being,” and that there were no plans to continue the series. There has yet to be an official announcement explaining why the series was cancelled; all we know is that it will be replaced by the DuckTales comic in their publishing schedule.
In other news, Chip ‘n’ Dale Rescue Rangers issue #7 is now available… better pick it up while you still can, before the CDRR comics are out of print.